Citation: Gaudin, E.; Boucher, F.; Petricek, V.; Taulelle, F.; Evain, M. (2000). Structures and phase transitions of the A~7~PSe~6~ (A~=~Ag, Cu) argyrodite-type ionic conductors. II. \b- and \g-Cu~7~PSe~6~. Acta Crystallographica Section B, 56, pp. 402-408.