International Tables for Crystallography Volume A1: Symmetry relations between space groups

* This extension to Volume A presents a systematic treatment of the maximal subgroups and minimal supergroups of the crystallographic plane groups and space groups * The second edition contains new chapters on building trees of group-subgroup relations for crystal structures that can be derived from an aristotype and on the Bilbao Crystallographic Server, and a detailed discussion of the listed supergroup data * Essential for those interested in phase transitions, the systematic compilation of crystal structures and twinning phenomena