Philip, George; Nabar, U. T.; Kanetkar, V. R.; Sunthankar, S. V.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1983 , vol. <B> 22, # 8 p. 808 - 811

Ukponmwan; Greenhalgh; Peters
Journal of Chemical and Engineering Data, 1984 , vol. 29, # 4 p. 482 - 483