FMC Corporation
Patent: US4070404 A1, 1978 ;

FMC Corporation
Patent: US4070404 A1, 1978 ;

Zakharkin, L. I.; Pryanishnikov, A. P.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1983 , vol. 32, # 2 p. 312 - 314
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1983 , # 2 p. 349 - 350