Kulkarni, Y. D.; Srivastava, Surendra, Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1985, vol. 24, # 1, p. 65 - 67
Kulkarni, Y. D.; Srivastava, Surendra, Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1985, vol. 24, # 1, p. 65 - 67