Sangwan, Naresh K.; Kelkar, Prabhakar M.; Rastogi, Shri Nivas, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1985, vol. 24, p. 639 - 644
Sangwan, Naresh K.; Kelkar, Prabhakar M.; Rastogi, Shri Nivas, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1985, vol. 24, p. 639 - 644