Venugopal, V. K.; Rao, Nagabhushan; Rahman, M. F., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1981, vol. 20, # 2, p. 156 - 157
Venugopal, V. K.; Rao, Nagabhushan; Rahman, M. F., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1981, vol. 20, # 2, p. 156 - 157