Trehan, I. R.; Bala, Renu; Trikha, D. K., Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1981, vol. 20, # 12, p. 1022 - 1025
Trehan, I. R.; Bala, Renu; Trikha, D. K., Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1981, vol. 20, # 12, p. 1022 - 1025