Shchukovskaya, L. L.; Voronkov, M. G.; Pavlova, O. V. Doklady Akademii Nauk SSSR, 1962 , vol. 142/147, p. 297 - 299 Doklady Akademii Nauk SSSR, 1962 , vol. 143, p. 387 - 389 Full Text Show Details Gmelin Handbook: B: B-Verb.14, 3.8.1.2.1, page 94 - 97