Sharma, K. S.; Kumari, Sharda; Singh, Ram Phul, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1981, vol. 20, # 9, p. 744 - 746
Sharma, K. S.; Kumari, Sharda; Singh, Ram Phul, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1981, vol. 20, # 9, p. 744 - 746