1. V. M. Shul’man, Doctoral Dissertation in Chemistry (Novosibirsk, 1966).
2. V. P. Vasil’ev, V. I. Shorokhova, N. N. Grechina, and L.V. Katrovtseva, Zh. Neorg. Khim. 25(9), 2313 (1978).
3. N. N. Golovnev and N. V. Zorina, Zh. Fiz. Khim. 72(3), 460 (1998) [Russ. J. Phys. Chem. 72 (3), (1998)].
4. V. A. Fedorov, V. I. Belevantsev, and N. N. Golovnev, Koord. Khim. 4(11), 1673 (1978).
5. S. A. Zaidi and Z. A. Siddiqi, J. Inorg. Nucl. Chem. 37(7–8), 1806 (1975).