Parmar, Virinder S.; Gupta, Sandhya; Sinha, Rita; Sharma, Sunil K.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1993 , vol. 32, # 2 p. 244 - 256

Parmar, Virinder S.; Gupta, Sandhya; Sinha, Rita; Sharma, Sunil K.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1993 , vol. 32, # 2 p. 244 - 256

Sastri; Seshadri
Proceedings - Indian Academy of Sciences, Section A, 1946 , # 24 p. 243,252