Sengupta, Pasupati; Sen, Manju; Sarkar, Arup, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1987, vol. 26, # 1-12, p. 611 - 615
Sengupta, Pasupati; Sen, Manju; Sarkar, Arup, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1987, vol. 26, # 1-12, p. 611 - 615