Acta Crystallographica Section A
Acta Crystallographica
Section A FOUNDATIONS AND ADVANCES

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FOUNDATIONS
ADVANCES

Volume 45| Part 2

ISSN: 2053-2733

February 1989 issue

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obituaries

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Stepan Alekseevich Semiletov, 1925-1988

B. K. Vainshtein, B. B. Zvyagin, L. I. Man and V. I. Simonov

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research papers

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Concerning phase relationships which are not structure invariants or seminvariants

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On integrating the techniques of direct methods with anomalous dispersion: the one-phase structure seminvariants in the monoclinic and orthorhombic systems. I. Theoretical background

D. Velmurugan and H. A. Hauptman

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On integrating the techniques of direct methods with anomalous dispersion: the one-phase structure seminvariants in the monoclinic and orthorhombic systems. II. Applications

D. Velmurugan, H. A. Hauptman and S. A. Potter

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New surface patches for minimal balance surfaces. I. Branched catenoids

W. Fischer and E. Koch

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New surface patches for minimal balance surfaces. II. Multiple catenoids

E. Koch and W. Fischer

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Bloch-wave solution in the Bragg case

Y. Ma and L. D. Marks

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Direct determination of triplet phases and enantiomorphs of non-centrosymmetric structures. II. Experimental results

K. Hümmer, E. Weckert and H. Bondza

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Crystallography, geometry and physics in higher dimensions. V. Polar and mono-incommensurate point groups in the four-dimensional space %E⁴

R. Veysseyre and D. Weigel

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Modified multislice theory for calculating the energy-filtered inelastic images in REM and HREM

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The maximum entropy distribution consistent with observed structure amplitudes

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The estimation of triplet invariants from multi-wavelength data

E. A. Klop, H. Krabbendam and J. Kroon

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short communications

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On the orthogonal transformation used for structural comparisons

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Space groups rare for organic structures. Erratum

A. J. C. Wilson

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international union of crystallography

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Nominations for the Ewald Prize

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notes and news

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European Microbeam Analysis Society

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Nobel Prize for Chemistry

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book reviews

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Morphology of crystals: Part A (Series in materials science of minerals and rocks) edited by I. Sunagawa

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research papers

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Search for satellite reflections and low-temperature study of the 1223 and 2212 Tl–Ba–Ca–Cu–O superconductors

Y. Gao, R. Li, P. Coppens, A. W. Sleight and M. A. Subramanian

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commission report

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Commission on Charge, Spin and Momentum Densities. Newsletter No. 1

Commission on Charge, Spin and Momentum Densities

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Advances

Recently published Advances articles are given below.

Interpretation of angular symmetries in electron nanodiffraction patterns from thin amorphous specimens. A. C. Y. Liu, G. R. Lumpkin, T. C. Petersen, J. Etheridge & L. Bourgeois (2015). Acta Cryst. A71, doi:10.1107/S2053273315011845.

Identification of inversion domains in KTiOPO₄ via resonant X-ray diffraction. F. Fabrizi, P. A. Thomas, G. Nisbet & S. P. Collins (2015). Acta Cryst. A71, 361-367.

Partial order among the 14 Bravais types of lattices: basics and applications. H. Grimmer (2015). Acta Cryst. A71, 143-149.

SHELXT - Integrated space-group and crystal-structure determination. G. M. Sheldrick (2015). Acta Cryst. A71, 3-8.

Special issues

Mathematical Crystallography

Bragg centennial issue

Laue centennial issue

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