Kugatova-Shemyakina,G.P.; Kazlauskas,D.A.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1966 , p. 262 - 269
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1966 , # 2 p. 293 - 302