Antokhina,L.A.; Alimov,P.I.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1966 , # 12 p. 2067 - 2070
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1966 , # 12 p. 2135 - 2139

Petrov,M.L. et al.
J. Gen. Chem. USSR (Engl. Transl.), 1976 , vol. 46, p. 2390 - 2391,2290