Chauhan, P. M. S.; Rao, K. V. B.; Iyer, R. N., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1987, vol. 26, # 1-12, p. 248 - 250
Chauhan, P. M. S.; Rao, K. V. B.; Iyer, R. N., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1987, vol. 26, # 1-12, p. 248 - 250