\documentclass{iucr}
Additional options will normally be specified with this command. The most
common option is preprint, to produce a single-column double-spaced
version of the paper suitable for review purposes. Use this option for the
hard-copy version of the paper submitted to the Co-editor:
\documentclass[preprint]{iucr}
Since the journals are not typeset directly from LaTeX (but from another language, SGML, into which the LaTeX file is translated), it is usually appropriate to prepare the manuscript solely in this `preprint' mode.
For camera-ready conference papers the preprint option may be omitted, and the paper should be made up according to the page style of the journal, including the proper placement of figures and tables. See the specific instructions for preparing conference papers in such cases
For papers containing long mathematical equations, it is helpful if the author processes the paper without the preprint mode during initial preparation, so that the equations may be adjusted to fit properly into the narrow columns of the journal.
[condition:normal[
\documentclass[preprint]{iucr}
\journalcode{D}
References to structures deposited in the Protein Data Bank or Nucleic Acids
Database should be inserted using the macros \PDBref or
\NDBref in the header portion of the article. See the
documentation for further information.
Electronic versions of the figures should preferably be PostScript files, with one figure per page. However, there is no objection to calling figures into the LaTeX file so that they can be printed in the hard-copy review manuscript. When accepted for publication, the final version to be submitted to the editorial office should be prepared with the invocation
\documentclass[d]{iucr}
\journalcode{D}
for full research papers, or
\documentclass[d,short]{iucr}
\journalcode{D}
for short contributions (such as Short Communications or Crystallization Papers),
to ensure that mathematical equations will fit into the narrow columns used
in the journal.
]]
[condition:iccbm9[
\documentclass[preprint]{iucr}
\journalcode{D}
Electronic versions of the figures should preferably be PostScript
files, with one figure per page. However, there is no objection to
calling figures into the LaTeX file so that they can be printed in the
hard-copy review manuscript.
When accepted for publication, the final
publication-ready version to be submitted to the Editor
should be prepared with the invocation
\documentclass[d]{iucr}
\journalcode{D}
]]
LaTeX and BiBTeX may be obtained free of charge from the Comprehensive TeX Archive or from a variety of public ftp archives. Specific implementations for many computer systems are also available from commercial vendors. A convenient source of the programs and supporting files is the TeXLive CD-ROM distribution.
The documentation is available in PDF format online.
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