10.1016/0022-3697(71)90017-5
Blaauw C, 1973, J. Phys. C: Solid St. Phys., 6, 1422, 10.1088/0022-3719/6/8/009
10.1107/S0021889872009173
10.1107/S0365110X64003127
Fischer P, 1978, Acta. Crystallogr., 34, S313
Ismailzade J G, 1967, Sov. Phys.-Dokl., 11, 747
Ismailzade J G, 1971, Phys. Stat. Solidi, 46, K39, 10.1002/pssb.2220460156
Jacobson A J, 1975, J. Phys. C: Solid St. Phys., 8, 844, 10.1088/0022-3719/8/6/015
10.1016/0038-1098(75)90726-7
Kiselev S V, 1963, Sov. Phys.-Dokl., 7, 742
Krainik N N, 1966, Sov. Phys.-Solid St., 8, 654
10.1107/S0567739475000332
10.1016/0038-1098(69)90597-3
Moreau J M, 1971, J. Phys. Chem. Solids, 32, 1315, 10.1016/S0022-3697(71)80189-0
10.1107/S056773947200097X
Polomska M, 1974, Phys. Stat. Solidi, 23, 567, 10.1002/pssa.2210230228
10.1107/S0021889869006558
Roginskaya Yu E, 1966, Sov. Phys.-JETP, 23, 47
Shaughnessy T P, 1972, AIP Conf. Proc. USA, 10, 1143
Smolenskii G A, 1965, Sov. Phys.-Solid St., 6, 2936
10.1016/0038-1098(70)90262-0
10.1107/S0365110X61000048
Yudin V M, 1966, Sov. Phys.-Solid St., 8, 217