Anzani, Fulvio; Croce, Piero Dalla; Stradi, Riccardo
Journal of Heterocyclic Chemistry, 1980 , vol. 17, p. 311 - 313

Gupta, K. A.; Saxena, Anil K.; Jain, Padam C.; Dua, P. R.; Prasad, C. R.; Anand, Nitya
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1983 , vol. <B> 22, # 8 p. 789 - 794

Gupta, K. A.; Saxena, Anil K.; Jain, Padam C.; Dua, P. R.; Prasad, C. R.; Anand, Nitya
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1983 , vol. <B> 22, # 8 p. 789 - 794