28.6 For More Information

• International Tables for Crystallography, Volume A: Space-group symmetry. M. I. Aroyo ed. (2016). 6th ed. Chichester: Wiley, for the International Union of Crystallography. DOI: 10.1107/97809553602060000114.

  This is the canonical reference for space groups. If your library does not have a physical copy of Volume A, they may offer on-line access.

  International Tables for Crystallography, Volume A1: Symmetry Relations Between Space Groups. H. Wondratschek, U. Müller eds. (2004). Dordrecht: Springer, for the International Union of Crystallography. DOI: 10.1107/97809553602060000101.

  This greatly expands on the subgroup-supergroup information found in International Tables, Volume A, but the Bilbao Crystallographic Server (see below) is probably even easier to use.

• The Bilbao Crystallographic Server, https://cryst.ehu.es/cryst/ offers excellent tools for exploring subgroup-supergroup relationships.

• Space Groups for Solid State Scientists, 3rd Edition (2013), G. Burns and A.M. Glazer, Academic Press, DOI: 10.1016/C2011-0-05712-5.

  This explains how to read the International Tables, Volume A. Excellent discussion on subgroup-supergroup relationships.

• Symmetry in Crystallography, Understanding the International Tables, (2012) P. G. Radaelli, Oxford Publ. for the International Union of Crystallography. DOI: 10.1002/crat.201200325.

  This also explains how to read the International Tables, Volume A.

• Symmetry Relationships between Crystal Structures, (2017) U. Müller, Oxford Publ. for the International Union of Crystallography. DOI: 10.1002/anie.201306902.