Singh, P. P.; Atreya, Kshipra; Yadava, S. P., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1983, vol. 22, # 5, p. 376 - 381
Singh, P. P.; Atreya, Kshipra; Yadava, S. P., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1983, vol. 22, # 5, p. 376 - 381