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Zhurnal Organicheskoi Khimii, 1980 , vol. 16, # 12 p. 2513 - 2518
Abramova,N.M.; Zotova,S.V.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1979 , vol. 28, p. 653
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1979 , vol. 28, p. 697
