Srivastava, T. N.; Srivastava, C. R.; Srivastava, V. K., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1983, vol. 22, # 6, p. 503 - 506
Srivastava, T. N.; Srivastava, C. R.; Srivastava, V. K., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1983, vol. 22, # 6, p. 503 - 506