1. Brewer, L.; Lamoreaux, R. H. (At. Energy Rev. Spec. Issue No. 7 [1980] 195/356, 241/4).
2. Khaldoyanidi, K. A.; Yakovlev, I. I.; Ikorskii, V. N. (Zh. Neorgan. Khim. 26[1981] 3067/9;
3. Khaldoyanidi, K. A.; Yakovlev, I. I.; Ikorskii, V. N. Russ. J. Inorg. Chem. 26[1981] 1639/40).
4. Popov, A. P.; Tsvetnikov, A. K.; Goncharuk, V. K. (Zh. Neorgan. Khim. 23[1978] 236/9;
5. Popov, A. P.; Tsvetnikov, A. K.; Goncharuk, V. K. Russ. J. Inorg. Chem. 23[1978] 132/3).