1. P. P. Fedorov and B. P. Sobolev, Kristallografiya 37 (5), 1210 (1992).
2. I. I. Buchinskaya and P. P. Fedorov, Usp. Khim. 73 (4), 404 (2004).
3. I. I. Buchinskaya, P. P. Fedorov, and B. P. Sobolev, SPIE Proc.: Solid State Cryst.: Growth Charact. (Zakopane, Poland) 3178, 59 (1996).
4. V. M. Buznik, A. A. Sukhovskoi, V. A. Vopilov, et al., Russ. J. Inorg. Chem. 42 (12), 1924 (1997).
5. P. P. Fedorov, I. I. Buchinskaya, E. A. Zhurova, et al., Proc. Conf. “Structure and Properties of Crystalline Materials,” Dubna, March 4–6,1997, p. 42.