W Hönle, G Kühn, UC Boehnke - Crystal Research and …, 1988 - Wiley Online Library
The crystal structures of the δ‐phase with a composition of Cu0. 46In1. 18Se2. 00 and of a
Cu‐poor β‐phase with a composition of Cu0. 39In1. 20Se2. 00, both quenched from 750° C …