1. V. M. Denisov, N. V. Belousova, G. K. Moiseev, S.G. Bakhvalov, S. A. Istomin, and E. A. Pastukhov, Bismuth-Containing Materials: Structure and Physicochemical Properties (Ural Branch of the Russian Academy of Sciences, Yekaterinburg, 2000) [in Russian].
2. Yu. F. Kargin, V. I. Burkov, A. A. Mar’in, and A. V. Egorysheva, Crystals Bi 12 M x O 20 ± δ with the Sillenite Structure: Synthesis, Structure, and Properties (Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, 2004) [in Russian].
3. G. V. Avdeev, T. I. Milenov, A. V. Egorysheva, K. P. Petrov, V. M. Skorikov, R. Kh. Titorenkova, and P. M. Rafailov, Russ. J. Inorg. Chem. 56(6), 913 (2011).
4. E. I. Speranskaya, V. M. Skorikov, G. M. Safronov, and E. N. Gaidukov, Izv. Akad. Nauk SSSR, Neorg. Mater. 6(7), 1364 (1970).
5. P. Eckerlin and J. Liebertz, Naturwissenschaften 52(15), 450 (1965).