1. L. V. Usov, G. P. Panasyuk, and V. B. Lazarev, Zh. Neorg. Khim. 35, 2464 (1990).
2. L. V. Usov, G. P. Panasyuk, and V. B. Lazarev, Zh. Neorg. Khim. 35, 2741 (1990).
3. V. B. Lazarev, G. P. Panasyuk, and M. N. Danchevskaya, Zh. VKhO Mendeleeva 36, 706 (1991).
4. L. V. Usov, Zh. Neorg. Khimii 41, 1447 (1996).
5. V. B. Lazarev, G. P. Panssyuk, I. L. Voroshilov, G. P. Budova, M. N. Danchevskaya, S. N. Torbin, and Yu. D. Ivakin, Ind. Eng. Chem. Res. 35, 3721 (1996).