1. N. V. Belov, Structure of Ionic Crystals and Metal Phases (Akad. Nauk SSSR, Moscow, 1947), p. 238.
2. A. F. Wells, Structural Inorganic Chemistry (Clarendon, Oxford, 1984; Mir, Moscow, 1987), Vol. 1, p. 408.
3. P. I. Kripyakevich, Structure Types of Intermetallic Compounds (Nauka, Moscow, 1977), p. 288.
4. W. B. Pearson, Crystal Chemistry and Physics of Metals and Alloys (Wiley, New York, 1972; Mir, Moscow, 1977), Chap. 1.
5. S. V. Borisov, Zh. Strukt. Khim. 34(5), 116 (1992).