notes for authors

1. Scientific scope

Acta Crystallographica Section D, Structural Biology welcomes the submission of articles covering any aspect of structural biology, with a particular emphasis on the structures of biological macromolecules or the methods used to determine them.

Reports on new structures of biological importance may address the smallest macromolecules to the largest complex molecular machines. These structures may have been determined using any structural biology method including crystallography, NMR, cryoEM and/or other techniques. The key criterion is that such articles should present significant new insights into biological, chemical or medical sciences. The inclusion of complementary data that support the conclusions drawn from the structural studies (such as binding studies, mass spectrometry, enzyme assays, or analysis of mutants or other modified forms of biological macromolecule) is encouraged.

Methods articles may include new approaches to any aspect of biological structure determination or structure analysis but will only be accepted where they focus on new methods that are demonstrated to be of general applicability and importance to structural biology. Articles describing particularly difficult problems in structural biology are also welcomed, if the analysis provides useful insights to others facing similar problems.

2. Categories of contributions

Contributions should conform to the general editorial style of the journal. Typical articles may be viewed by going to Articles should be written with a wide structural biology audience in mind.

2.1. Research Papers

Full-length Research Papers should not normally exceed 15 journal pages (about 15 000 words).

2.2. Lead Articles

Lead Articles are authoritative, comprehensive and forward-looking reviews of major areas of research interest. Suggestions for suitable topics and of potential author(s) are welcomed by the Section Editors.

The Section Editors will discuss the treatment of the topic, the length and the delivery date of the article with invited author(s).

2.3. Feature Articles

Feature Articles are focused surveys covering recent advances in an area of current research. A brief introduction should provide historical perspective and a brief conclusion should indicate likely future directions. Inclusion of relevant new results is appropriate.

Feature Articles will be about ten journal pages (10 000 words). Shorter articles on rapidly evolving areas are also actively encouraged.

2.4. Topical Reviews

Topical Reviews aim to capture the current trend of a field and are expected to be relatively short. Typically they should contain about 6000 words and a maximum of 50 references, with half of those having been published in the last three years.

2.5. Letters to the Editor

These may deal with non-technical aspects of crystallography, its role, its propagation, the proper function of its Societies etc., or may make a technical observation that would usefully be brought to a wider audience. They can also be used as a means of post-publication discussion. Letters should be submitted to one of the Section Editors.

2.6. Scientific Comment

Comments of general scientific interest to the readership are welcomed. These should not normally exceed two journal pages.

2.7. Scientific Commentaries

Scientific Commentaries discuss articles of particular importance for the readership of the journal. Suggestions for suitable topics and of potential author(s) are welcomed by the Section Editors.

3. Submission and handling of articles

3.1. Submission

Articles should be submitted at Full instructions for submitting an article and details of the files required are given at Authors are encouraged to use the templates available from

For structural articles, appropriate supporting information for each structure reported should be provided during submission (see Section 5[link]).

A single author (the submitting author) should handle the submission of the article and be the contact for any editorial questions during the review and publication processes. The submitting author should provide an e-mail address. The published article may have one or more authors (correspondence authors) who are responsible for communications after publication and are marked with an asterisk in the published article. All authors are strongly encouraged to provide an ORCiD iD during submission.

All submissions should be accompanied by a covering letter that explains the significance of the work reported. During submission authors will be encouraged to provide a tweet about their article for use on publication; twitter handles for departments, institutions etc. will also be requested.

3.2. File format

The source files required for an article include: a single file in Word, OpenDocument or LaTeX format of the text, tables and figures of the article; and a high-resolution graphics file (minimum 600 d.p.i.) in TIFF, PostScript, encapsulated PostScript, JPEG or PNG format for each figure and scheme. Supporting information should be provided in one of the formats listed at Files should be uploaded as described in the online submission instructions.

3.3. Handling of articles

Each article is handled by an editor (Co-editor or Section Editor) chosen by the author from a list of those available at the time of submission. Authors should choose an editor whose area of expertise most closely matches the subject of the article. Details of the current Editorial Board can be found at

All contributions will be seen by referees (normally two) before they can be accepted for publication. The editor to whom the article is assigned is responsible for choosing referees and for accepting or rejecting the article. This responsibility includes decisions on the final form of the article and interpretation of these Notes when necessary. The Co-editor may request revisions to the article (e.g. to the title and abstract) before peer review. Further information on the peer review process can be found at

Changes to an article requested by the Section Editors, Co-editor or the editorial staff should be received within one month of transmittal to the author, otherwise the submission will be considered as withdrawn. If an article is not acceptable after two rounds of major revision it will not be considered further. Any subsequent communication of the material will be treated as a new submission in the editorial process. An article that has been rejected should not be resubmitted to any IUCr journal unless the reasons given for the rejection have been fully addressed in the revised version.

After initial submission, any revised or new files should be uploaded only in response to a specific request from an editor.

For accepted articles, it is the responsibility of the Managing Editor to prepare the article for publication. This may involve correspondence with the authors and/or the responsible editor in order to resolve ambiguities or to obtain satisfactory figures or tables. The date of acceptance that will appear on the published article is the date on which the Managing Editor receives the last item required. Contact details for the Managing Editor of Section D can be found at

Articles may be checked for plagiarism using the Crossref Similarity Check service.

3.4. Transfer of articles

On rare occasions, editors may suggest the transfer of an article to another IUCr Journal, if the article appears to be more suited to the other journal. The transfer process is rapid, as articles can be seamlessly transferred from one journal to another together with the corresponding reviews. The editor of the new journal will often make a decision based on the existing reviews, but will sometimes invite additional reviewers. Note that any change to the journal of publication will only be made after full discussion with the submitting author.

3.5. Author's warranty and ethical considerations

The submission of an article is taken as an implicit guarantee that the work is original, that it is the author(s) own work, that all authors are aware of and concur with the submission, that all workers involved in the study are listed as authors or given proper credit in the acknowledgements, that the article has not already been published (in any language or medium), and that it is not being considered and will not be offered elsewhere while under consideration for Section D. Authors should avoid multiple or redundant publication (where essentially the same research is published in more than one journal). The prior inclusion of material in an informal publication, e.g. a preprint server, is welcomed by IUCr Journals.

The co-authors of an article should be all those persons who have made significant scientific contributions to the work reported, including the ideas and their execution, and who share responsibility and accountability for the results. Other contributions should be indicated in the acknowledgements. Changes to the list of authors will normally require the agreement of the editor and all authors.

The IUCr is a member of COPE (Committee on Publication Ethics) and endorses its recommendations, including the Code of Conduct for Editors, which are available at For more information about the ethical considerations related to publication, see the IUCr's ethical publishing policy.

Authors publishing in the journal may be asked to review articles submitted to the journal.

3.6. AI tools

Authors may make use of AI tools in preparing their articles. However, such tools may not be listed as an author, as they cannot be held accountable for the work. All co-authors of the text should carefully check for any errors introduced through the use of an AI tool. Authors who have employed an AI tool should document this use in the methods or acknowledgements sections.

3.7. Author grievance procedure

An author who believes that an article has been unjustifiably treated by the Co-editor may appeal initially to the Section Editors for a new review and, finally, to the Editor-in-chief of IUCr Journals if still aggrieved by the decision. The initial appeal should be made within three months of rejection of the article. The decision of the Editor-in-chief is final.

3.8. Licencing

Except as required otherwise by national laws, an author will be required to agree to either a licence to publish or an open-access licence (see Section 3.9[link]) before a manuscript can be accepted. Details of author rights can be found at

3.9. Open access

Authors are given the opportunity to make their articles open access. Authors of open-access articles will not be asked to transfer copyright to the IUCr, but will instead be asked to agree to an open-access licence. This licence is identical to the Creative Commons Attribution (CC-BY) Licence. Further details can be found at

3.10. Publication fees

There are no fees for colour figures or electronic reprints. If authors require open access there is a charge and for some authors this may be covered by a transformative deal with their institution. Full details will be given at the proof stage or see

4. Article preparation

4.1. General information

Articles should be clearly and simply written so that they are accessible to as broad a readership as possible. Before preparing articles, authors should consult a current issue of the journal to make themselves familiar with the general format, such as the use of headings, layout of tables and citation of references. A sample issue is available at

The title of the article should be written to appeal to a wide audience and should include key phrases in the subject area. The most effective titles are generally no more than 10–12 words in length. The use of acronyms or abbreviations should be avoided.

All contributions should be accompanied by an English language Abstract and a one- or two-sentence Synopsis of the main findings of the article for inclusion in the contents pages. Authors should also supply at least five carefully selected keywords. These may include synonyms and specific phrases related to the subject of the article.

The Abstract should state as specifically and as quantitatively as possible the principal results obtained and their broad significance. For Research Papers, Lead Articles or Feature Articles the Abstract should be around 250 words. For shorter contributions 150 words should suffice. The Abstract should be suitable for reproduction by abstracting services without a change in wording. It should make no reference to tables, diagrams, atom numbers or formulae contained in the article. It should not contain footnotes and should not include the use of `we' or `I'.

4.2. Quality of writing

It is important that articles are well written and grammatically correct. If the Co-editor concludes that language problems would place an undue burden on the referees, the article may be returned to the authors without review. Details of language-editing services can be found at

4.3. Diagrams and photographs (`figures')

A set of guidelines for preparing figures is available from High-resolution figures should be submitted in one of the file formats listed in Section 3.2[link]. To aid reviewing, figures and their corresponding captions should also be included in the article at the point that they are first mentioned.

The choice of figures should be optimized to produce the shortest article consistent with clarity. Duplicate presentation of the same information in both figures and tables is to be avoided, as is redundancy with the text. Supplementary figures may be deposited (see Section 6[link]).

An image should be provided which summarizes the message of the paper, and can be used as a graphical abstract or thumbnail on the contents pages and the first page of the article.

Authors of protein structure articles are requested to provide a figure illustrating the overall fold of the protein and a diagram illustrating the fit of any relevant side chains or ligands to the electron density. These figures can either be provided as part of the manuscript or as supporting information (see Section 6[link]).

Fibre data should contain appropriate information such as a photograph of the data. In articles which use powder-profile fitting or refinement (Rietveld) methods, figures that present the experimental and calculated diffraction profiles of the material studied should also contain the difference profile (see also Section 5.7[link]).

4.3.1. Quality

Electronic files in the formats listed in Section 3.2[link] are essential for high-quality reproduction. The resolution of bitmap graphics should be a minimum of 600 d.p.i.

4.3.2. Size

Diagrams should be as small as possible consistent with legibility. They will normally be sized so that the greatest width including lettering is less than the width of a column in the journal (8.8 cm).

4.3.3. Lettering and symbols

Fine-scale details and lettering should be large enough to be clearly legible (ideally 1.5–3 mm in height) after the whole diagram has been reduced to one column width.

Lettering should be kept to a minimum; grids and shadings should be avoided where they are not required to improve clarity. Descriptive matter should be placed in the caption.

A scale bar should be included on images that contain crystals.

4.3.4. Numbering and captions

Diagrams should be numbered in a single series in the order in which they are referred to in the text. Each figure should be accompanied by a caption.

4.3.5. Stereofigures

Atom labelling when included should be on both left and right views in stereo perspective. Both views should be incorporated into a single figure. Stereofigures should be wall-eyed (i.e. left-eye image on the left).

4.3.6. Colour figures

Figures in colour are accepted at no cost to the author.

Authors preparing colour figures should consider how the figure would look in greyscale and to readers who are colour-blind. It is very important that poor contrast (e.g. pale colours with a white background) be avoided.

4.3.7. Cover figure

Authors are encouraged to supply suggestions for the cover illustration of the journal.

4.4. Tables

Authors submitting in Word should use the Word table editor to prepare tables. Experimental tables can also be prepared as in Section 4.4.3[link] below.

4.4.1. Use of tables

Extensive numerical information is generally most economically presented in tables. Text and diagrams should not be redundant with the tables.

4.4.2. Design, numbering and size

Tables should be numbered in a single series of arabic numerals in the order in which they are referred to in the text. They should be provided with a caption.

Tables should be carefully designed to occupy a minimum of space consistent with clarity.

4.4.3. Experimental tables

Each structural article will normally include standard experimental details tables (see Section 5[link]). These tables may be generated using the IUCr Word templates available from

4.5. Video and multimedia content

Multimedia content (e.g. time-lapse sequences, three-dimensional structures) is welcomed. The preferred file formats for multimedia are given at

4.6. Mathematics and letter symbols

Authors submitting in Word should use the Word equation editor to prepare displayed mathematical equations.

The use of the stop (period) to denote multiplication should be avoided except in scalar products. Generally no sign is required but, when one is, a multiplication sign (×) should be used.

Scalar variables and non-standard functions should appear in italic type.

Vectors should be in bold type and tensors should be in bold-italic type.

Greek letters should not be spelled out.

Care should be taken not to cause confusion by using the same letter symbol in two different meanings.

Gothic, script or other unusual lettering should be avoided. Another typeface may be substituted if that used by the author is not readily available.

All displayed equations, including those in published Appendices, should be numbered in a single series.

4.7. Nomenclature

4.7.1. Units

The International System of Units (SI) is used except that the ångström (symbol Å, defined as 10−10 m) is generally preferred to the nanometre (nm) or picometre (pm) as the appropriate unit of length. Recommended prefixes of decimal multiples should be used rather than `× 10n'.

4.7.2. Biochemical nomenclature

The recommendations of the Nomenclature Committee of IUBMB and the IUPAC-IUBMB Joint Commission on Biochemical Nomenclature (see should be followed as far as practicable. The recommendations of Enzyme Nomenclature (1992, San Diego: Academic Press; and its supplements) should be followed as far as possible (see This includes the quoting of EC numbers. It is recommended that authors use the nomenclature for restriction enzymes, DNA, methyltransferases, homing endonucleases (and their genes) proposed by Roberts et al. [(2003), Nucleic Acids Res. 31, 1805–1812].

4.7.3. Crystallographic nomenclature

Authors should follow the general recommendations produced by the IUCr Commission on Crystallographic Nomenclature (see reports at

The nomenclature for components other than proteins and nucleic acids should, as far as possible, follow that used in the Worldwide Protein Data Bank Chemical Component Dictionary.

Space groups should be designated by the Hermann–Mauguin symbols. Standard cell settings, as listed in Volume A of International Tables for Crystallography, should be used unless objective reasons to the contrary are stated. When a non-standard setting is used, the list of equivalent positions should be given. Hermann–Mauguin symbols should also be used for designating point groups and molecular symmetry. It is helpful if the origin used is stated explicitly where there is a choice.

The choice of axes should normally follow the recommendations of the Commission on Crystallographic Data [Kennard et al. (1967). Acta Cryst. 22, 445–449].

A symbol such as 123 or hkl without brackets is understood to be a reflection, (123) or (hkl) a plane or set of planes, [123] or [uvw] a direction, {hkl} a form and 〈uvw〉 all crystallographically equivalent directions of the type [uvw]. Other bracket notations should be explicitly defined.

If a crystallographic term carries a specific meaning but is already established with a different meaning in another field, it is acceptable to use the term in that manner as long as its intended meaning is evident within the context of the paper.

4.7.4. Nomenclature of chemical compounds etc.

Chemical formulae and nomenclature should conform to the rules of nomenclature established by the International Union of Pure and Applied Chemistry (IUPAC), the International Mineralogical Association (IMA) and other appropriate bodies. As far as possible the crystallographic nomenclature should correspond to the systematic name.

Any accepted trivial or non-systematic name may be retained, but the corresponding systematic (IUPAC) name should also be given.

4.8. Funding information

Articles may include a Funding information section. This section aims to help authors comply with the reporting requirements of funders, and includes information on funders and grant/award numbers. Funding information should not be included in the acknowledgements section. For more information, see

4.9. References

References to published work should be indicated by giving the authors' names followed immediately by the year of publication, e.g. Neder & Schulz (1998) or (Neder & Schulz, 1998). Where there are three or more authors the reference in the text should be indicated in the form Smith et al. (1998) or (Smith et al., 1998).

The reference list should be arranged alphabetically and conform with the following style:

Agirre, J., Atanasova, M., Bagdonas, H., Ballard, C. B., Baslé, A., Beilsten-Edmands, J., Borges, R. J., Brown, D. G., Burgos-Mármol, J. J., Berrisford, J. M., Bond, P. S., Caballero, I., Catapano, L., Chojnowski, G., Cook, A. G., Cowtan, K. D., Croll, T. I., Debreczeni, J. É., Devenish, N. E., Dodson, E. J., Drevon, T. R., Emsley, P., Evans, G., Evans, P. R., Fando, M., Foadi, J., Fuentes-Montero, L., Garman, E. F., Gerstel, M., Gildea, R. J., Hatti, K., Hekkelman, M. L., Heuser, P., Hoh, S. W., Hough, M. A., Jenkins, H. T., Jiménez, E., Joosten, R. P., Keegan, R. M., Keep, N., Krissinel, E. B., Kolenko, P., Kovalevskiy, O., Lamzin, V. S., Lawson, D. M., Lebedev, A. A., Leslie, A. G. W., Lohkamp, B., Long, F., Malý, M., McCoy, A. J., McNicholas, S. J., Medina, A., Millán, C., Murray, J. W., Murshudov, G. N., Nicholls, R. A., Noble, M. E. M., Oeffner, R., Pannu, N. S., Parkhurst, J. M., Pearce, N., Pereira, J., Perrakis, A., Powell, H. R., Read, R. J., Rigden, D. J., Rochira, W., Sammito, M., Sánchez Rodríguez, F., Sheldrick, G. M., Shelley, K. L., Simkovic, F., Simpkin, A. J., Skubak, P., Sobolev, E., Steiner, R. A., Stevenson, K., Tews, I., Thomas, J. M. H., Thorn, A., Valls, J. T., Uski, V., Usón, I., Vagin, A., Velankar, S., Vollmar, M., Walden, H., Waterman, D., Wilson, K. S., Winn, M. D., Winter, G., Wojdyr, M. & Yamashita, K. (2023). Acta Cryst. D79, 449–461.

Brünger, A. T. (1992a). X-PLOR. Version 3.1. A System for X-ray Crystallography and NMR. Yale University, Connecticut, USA.

Brünger, A. T. (1992b). Nature, 355, 472–474.

Crowther, R. A. (1972). The Molecular Replacement Method, edited by M. G. Rossmann, pp. 173–178. Gordon and Breach.

International Union of Crystallography (2023). (IUCr) International Union of Crystallography,

Petit, G. A., Mohanty, B., McMahon, R. M., Nebl, S., Hilko, D. H., Wilde, K. L., Scanlon, M. J., Martin, J. L. & Halili, M. A. (2021). bioRxiv,

Reyes, A. A., Fishbain, S. & He, Y. (2022). Acta Cryst. F78,

Sheldrick, G. (2008). Acta Cryst. A64. 112–122.

Smith, J. (2022). Acta Cryst. D78. In the press.

Yariv, J. (1983). Personal communication.

Note that all authors and inclusive page numbers should be given.

Identification of individual structures in the article by use of database reference (identification) codes should be accompanied by a full citation of the original literature in the reference list.

Citations in supporting information should appear in the main body of the article or be given in a related literature section.

5. Data requirements

In order that others can reproduce, verify and build on the work published in IUCr Journals, authors are expected to make supporting data freely available. In this context, the IUCr has adopted a data-sharing policy that requires the data supporting the results in a structural article to be peer reviewed and archived either with the IUCr or in an appropriate public repository. For peer-review purposes, authors are asked to provide access to their data on submission.

Authors should follow the deposition recommendations of the IUCr Commission on Biological Macromolecules [Acta Cryst. (2000), D56, 2]. For all structural studies of macromolecules, coordinates and the related experimental data (intensities and their estimated standard uncertainties and/or NMR restraints) should be deposited at a member site of the Worldwide Protein Data Bank ( Authors should deposit their data with the wwPDB in advance of submission to the journal and the data should be released upon publication.

5.1. Validation reports

Authors of structural articles are required to provide a full official validation report obtained from the wwPDB for each structure. Further information about validation reports can be found in the online submission instructions.

5.2. Crystal structures

It is expected that crystal structures submitted to Section D will have been refined crystallographically. For each structural model, the following should be provided upon submission: the wwPDB reference code(s), a full wwPDB validation report, a file containing coordinates (mmcif or pdb format), and a reflection data file, preferably as intensities and their estimated standard uncertainties (mmcif or mtz format). Authors are also encouraged to upload anomalous dispersion data and/or experimental phases where appropriate (e.g. for metal identification).

Each structural article will normally include standard experimental tables. Further information and templates for standard experimental tables for crystal structure determinations can be found at

Adequate details should be provided regarding the steps followed in constructing the model and refining the structure. Also requested are: the number of solvent atoms; solvent B values; the history and salient details of the refinement methods employed, including the restraints used; a description of how the thermal parameters were treated; and how the solvent sites were selected and handled during refinement.

Any structural features that are considered somewhat unusual should be described. Examples include cis peptide bonds; unoccupied volume inside the protein, buried charge groups that are not involved in salt bridges or reasonable hydrogen-bonding environments; unusual locations of glycine and proline residues; unusual distributions of polar and hydrophobic groups within the molecule; and unusual bond lengths, bond angles, planes, intra- and intermolecular contacts.

Any unexplained electron density that is not accounted for by the current model, or whose interpretation is ambiguous, should be discussed.

5.3. Small-angle scattering data

For structures determined by small-angle scattering, authors should deposit their data at the SASBDB ( in advance of submission to the journal and provide the SASBDB reference code(s). Authors should follow the publication guidelines from Trewhella et al. [Acta Cryst. (2017), D73, 710–728]. Templates and guidelines for articles reporting structural modelling of small-angle scattering may also be found at

5.4. Cryo-EM structural data

EM maps should be deposited in the Electron Microscopy Data Bank (EMDB; in advance of submission to the journal, and the data should be released upon publication. For each structural model, the following should be provided during submission: an EMDB reference code, a full wwPDB validation report, molecular coordinates (mmcif or pdb file), a primary map file, a map image file. Authors are also encouraged to upload half maps, additional maps and FSC curves where appropriate.

Further information and templates for standard experimental tables for cryo-EM structure determinations can be found at

5.5. NMR data

For structures determined by NMR, authors should deposit their data (molecular coordinates, assigned chemical shifts and the restraint data used in the last round of refinement) at the wwPDB and BMRB ( in advance of submission to the journal, and the data should be released upon publication. It is recommended that the NOE peak list is also deposited. For each structural model, the following should be provided during submission: the wwPDB reference code(s); a full wwPDB validation report, molecular coordinates (mmcif or pdb file), a chemical shift file (.str), at least one restraints file (.tbl or .mr). Authors are also encouraged to upload a peak list file.

Further information and templates for standard experimental tables for NMR structure determinations can be found at

5.6. Neutron diffraction data

In articles reporting neutron data, preliminary nuclear density maps should not be included unless the relevant statistics of R, Rfree, correlation coefficient and error estimates are provided.

5.7. Powder diffraction data

Authors of powder diffraction articles should consult the notes provided at For articles that present the results of powder diffraction profile fitting or refinement (Rietveld) methods, the primary diffraction data, i.e. the numerical intensity of each measured point on the profile as a function of scattering angle, should be deposited.

5.8. Small-molecule structure determinations

Authors of articles that report the results of crystal structure determinations of small molecules or materials should supply data as a single electronic file in CIF format. Structure-factor data in CIF format are also required.

5.9. Raw data

For articles describing a new structure or a new method tested on unpublished data, authors are recommended to make arrangements for their original raw diffraction data to be archived in a repository that assigns a DOI to the data. The assigned doi should be provided during the submission process and a link from the article to the data will be made upon publication.

6. Additional supporting information

Additional supporting information (such as experimental analyses, additional figures and multimedia content) that may be of use or interest to some readers but does not form part of the article itself will be made available from the journal website. Arrangements have also been made for such information to be deposited, where appropriate, with relevant databases. In some cases, e.g. large raw data sets, the journal might not host the data but will provide links if DOIs are available for the data.

7. Author information and services

An author services page is available at

7.1. Author tools

A number of tools are available to help with the preparation of articles.

Word, OpenDocument and LaTeX templates can be downloaded from the author services page.

Table tools within the Word templates may be used to prepare experimental tables from an mmCIF or from a released structure in the wwPDB.

7.2. Status information

Authors may obtain information about the current status of their articles at

7.3. Proofs

Proofs will be provided in portable document format (pdf). The submitting author will be notified by e-mail when the proofs are ready for downloading.

7.4. Reprints

After publication, the submitting author will be able to download the electronic reprint of the published article, free of charge.

7.5. Open-access articles

The final published version of each open-access article is deposited with PubMed Central on behalf of the authors.

7.6. Publication and social media

Section D is available online at Once your article has been published it will also appear on Twitter @ActaCrystD.

7.7. Publicising your article

There are many ways in which the IUCr promotes and raises awareness of articles published in its journals. More information on this and suggestions on how to publicise your articles can be found at

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