1. A.A. Kaminskii, P.V. Klevtsov, L. Li and A.A. Pavlyuk: Phys. Status Solidi (a) 5 (1971) K79.
2. A.A. Kaminskii, A.A. Pavlyuk, P.V. Klevtsov, I.F. Balashov, V. A. Berenberg, S.E. Sarkisov, V.A. Fedorov, M.V. Petrov and V. V. Lyubchenko: Izv. Akad. Nauk SSSR, Ser. Neorgan. Mater. 13 (1977) 582.
3. A.A. Kaminskii, A.A. Pavlyuk, T.I. Butaeva, L.I. Bobovich and V.V. Lyubchenko: Izv. Akad. Nauk SSSR, Ser. Neorg. Mater. 15 (1979) 541.
4. A.A. Kaminskii, A.A. Pavlyuk, N.R. Agmmalyan, L.I. Bobovich, A.V. Lukin and V.V. Lyubchenko: Izv. Akad. Nauk SSSR, Ser. Neorg. Mater. 15 (1979) 1496.
5. A.A. Pavlyuk, L.I. Kozeeva, K.G. Fomin, V.G. Glagyshev, V.S. Gulyaev, V.S. Pivtsov and A.A. Kaminskii: Izv. Akad. Nauk SSSR, Ser. Neorg. Mater. 19 (1983) 848.