Dhareshwar, G. P.; Chhaya, P. N.; Hosangadi, B. D.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1980 , vol. 19, # 10 p. 831 - 835

Chhaya, Pradeep; Nimbalkar, Manmohan; Hosangadi, Bhaskar
Tetrahedron Letters, 1983 , vol. 24, # 49 p. 5551 - 5552