Datta, S.; Shukla, S. K.; Agarwala, U. C., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1981, vol. 20, # 10, p. 985 - 989
Datta, S.; Shukla, S. K.; Agarwala, U. C., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1981, vol. 20, # 10, p. 985 - 989