Chattopadhyay, T. K.; Kumar, A. K.; Majee, B., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1985, vol. 24, # 8, p. 713 - 715
Chattopadhyay, T. K.; Kumar, A. K.; Majee, B., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1985, vol. 24, # 8, p. 713 - 715