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Development of the theory of group-subgroup relations
Aroyo, M. I., Müller, U. and Wondratschek, H.  International Tables for Crystallography (2011). Vol. A1, Section 1.1.3, pp. 3-4 [ doi:10.1107/97809553602060000790 ]
... The kind of derivation of the space-group types by H. Heesch (1930) also gives access to translationengleiche subgroups. In IT ... a chain of maximal subgroups. The derivation by Neubüser & Wondratschek started in 1965 with the translationengleiche subgroups of the space ... to relations between crystal structures are found in Neubüser & Wondratschek (1966). In the early tables, the subgroups were ...

Symmetry and crystal-structure determination
Aroyo, M. I., Müller, U. and Wondratschek, H.  International Tables for Crystallography (2011). Vol. A1, Section 1.1.2, pp. 2-3 [ doi:10.1107/97809553602060000790 ]
... the maximal subgroups of all space groups by Neubüser & Wondratschek. However, for another 18 years this material was only distributed ...

The fundamental laws of crystallography
Aroyo, M. I., Müller, U. and Wondratschek, H.  International Tables for Crystallography (2011). Vol. A1, Section 1.1.1, p. 2 [ doi:10.1107/97809553602060000790 ]
The fundamental laws of crystallography 1.1.1. The fundamental laws of crystallography The documentation concerning group-theoretical aspects of group-subgroup relations and the rising importance of these relations in three-dimensional crystallography is scattered widely in the literature. This short review, therefore, cannot be exhaustive and may even be unbalanced if ...

Graphs of the klassengleiche subgroups of cubic space groups
Gramlich, V. and Wondratschek, H.  International Tables for Crystallography (2011). Vol. A1, Section 2.5.5, pp. 462-463 [ doi:10.1107/97809553602060000801 ]
Graphs of the klassengleiche subgroups of cubic space groups 2.5.5. Graphs of the klassengleiche subgroups of cubic space groups For an explanation of these graphs, see Section 2.1.8.3 . Figure 2.5.5.1 | | Graph of the klassengleiche subgroups of the space groups of crystal class 23. Figure 2.5.5.2 | | Graph of the klassengleiche subgroups ...

Crystallographic viewpoints in the classification of space-group representations
Aroyo, M. I. and Wondratschek, H.  International Tables for Crystallography (2010). Vol. B, ch. 1.5, pp. 175-192 [ doi:10.1107/97809553602060000762 ]
... figures and tables for a few space groups by Aroyo & Wondratschek (1995). The k-vector classification scheme based on Wintgen ... crystal class , reciprocal-space group , isomorphic to , Wyckoff position 12 h mm2 x, ½, 0. In the subgroup , this Wintgen position splits ... different figures and tables. For example, there is a point H in Fig. 1.5.5.1 and Table 1.5.5.1 but a line ...

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