Muntyan,G.E. et al.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1972 , vol. 21, p. 861 - 865
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1972 , vol. 21, # 4 p. 909 - 914

Muntyan,G.E. et al.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1972 , vol. 21, p. 861 - 865
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1972 , vol. 21, # 4 p. 909 - 914