- High temperature electrical conductivity in ZnS:Cu ceramics and in CdSe-CdTe polycrystalline solid solutionsLott, Kalju; Nirk, Tiit; Gorokhova, Elena; Ryzhikov, EngelsPolyse'98 : Polycrystalline Semiconductors, September 13-18, 1998, Stadtgarten, Schwäbisch Gmünd, Germany : final program and abstracts1998 / p. P31