Kharsan, R. Singh; Patel, K. S.; Mishra, R. K., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1980, vol. 19, # 5, p. 499 - 500
Kharsan, R. Singh; Patel, K. S.; Mishra, R. K., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1980, vol. 19, # 5, p. 499 - 500