Kumar, Suniti; Mahajan, R. K.; Kapila, V. P., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1983, vol. 22, # 6, p. 490 - 493
Kumar, Suniti; Mahajan, R. K.; Kapila, V. P., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1983, vol. 22, # 6, p. 490 - 493