1. V. I. Mikheeva, Method of Physicochemical Analysis in Inorganic Synthesis (Nauka, Moscow, 1975) [in Russian].
2. Melting Diagrams of Salt Systems: Ternary Reciprocal Systems, Ed. by V. I. Posypaiko and E. A. Alekseeva (Khimiya, Moscow, 1977) [in Russian].
3. A. P. Palkin, Interrelation and Development of Ternary and Quaternary Reciprocal Systems in Molten State (KhGU, Kharkov, 1960) [in Russian].
4. T. G. Lupeiko, N. I. Tarasov, and V. N. Zyablin, Russ. J. Inorg. Chem. 46, 1074 (2001).
5. T. G. Lupeiko, N. I. Tarasov, and V. N. Zyablin, Russ. J. Inorg. Chem. 50, 90 (2005).