Kessar, S. V.; Nadir, U. K.; Gupta, Y. P.; Pahwa, P. S.; Singh, Paramjit
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1981 , vol. 20, # 1 p. 1 - 3

Kessar, S. V.; Nadir, U. K.; Gupta, Y. P.; Pahwa, P. S.; Singh, Paramjit
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1981 , vol. 20, # 1 p. 1 - 3