Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), , vol. 39, # 11 p. 2296 - 2300
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, , # 11 p. 2539 - 2544

Cheskis, B. A.; Ivanova, N. M.; Moiseenkov, A. M.; Nefedov, O. M.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1990 , vol. 39, # 11 p. 2296 - 2300
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1990 , # 11 p. 2539 - 2544

Vig, O. P.; Sharma, M. L.; Vohra, Neelam; Sabharwal, Arun; Huq, M. A.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1987 , vol. 26, # 1-12 p. 1069 - 1070