Pandey, A. K.; Singh, Rajendra; Verma, V. K., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1982, vol. 21, # 2, p. 150 - 152
Pandey, A. K.; Singh, Rajendra; Verma, V. K., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1982, vol. 21, # 2, p. 150 - 152