1. Dolgov, B.N., Voronkov, M.G., and Borisov, S.N., Zh. Obshch. Khim., 1957, vol. 27, no.3, p. 709.
2. Dolgov, B.N., Voronkov, M.G., and Borisov, S.N., Zh. Obshch. Khim., 1957, vol. 27, no.8, p. 2066.
3. Voronkov, M.G., Borisov, S.N., and Dolgov, B.N., Dokl. Akad. Nauk SSSR, 1957, vol. 114, no.1, p. 93.
4. Nefedov, V.D., Kochina, T.A., Shchukin, E.A., and Sinotova, E.N., Radiokhimiya, 1998, vol. 40, no, 5, p. 445.
5. Kochina, T.A., Vrazhnov, D.V., Nefedov, V.D., and Sinotova, E.N., Zh. Obshch. Khim., 1998, vol. 68, no.6, p. 967.