Gupta, Y. P.; Singh, Paramjit; Sharma, S. K., Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1980, vol. 19, # 5, p. 400 - 401
Gupta, Y. P.; Singh, Paramjit; Sharma, S. K., Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1980, vol. 19, # 5, p. 400 - 401