Sharma, K. S.; Singh, Ram Phul; Kumari, Sharda, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1981, vol. 20, # 8, p. 648 - 650
Sharma, K. S.; Singh, Ram Phul; Kumari, Sharda, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1981, vol. 20, # 8, p. 648 - 650