El-Sharief, A. M. Sh.; Ammar, M. S.; Ammar, Y. A.; Zaki, M. E. A.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1983 , vol. 22, # 7 p. 700 - 704
Philip, George; Nabar, U. T.; Kanetkar, V. R.; Sunthankar, S. V.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1983 , vol. <B> 22, # 8 p. 808 - 811
