Trehan, I. R.; Kad, G. L.; Gupta, Sangita, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1987, vol. 26, # 1-12, p. 811 - 813
Trehan, I. R.; Kad, G. L.; Gupta, Sangita, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1987, vol. 26, # 1-12, p. 811 - 813