Mondal, Ejabul; Sahu, Priti Rani; Bose, Gopal; Khan, Abu T.
Journal of the Chemical Society. Perkin Transactions 1, 2002 , # 8 p. 1026 - 1028

Zorin, V. V.; Batyrbaev, N. A.; Zlot-skii, S. S.; Rakhmankulov, D. L.
Journal of Organic Chemistry USSR (English Translation), 1984 , vol. 20, p. 347 - 352
Zhurnal Organicheskoi Khimii, 1984 , vol. 20, # 2 p. 387 - 393

Bao, Shaohua; Chen, Lu; Ji, Yongjun; Yang, Jianguo
Chinese Journal of Chemistry, 2010 , vol. 28, # 11 p. 2119 - 2122