Mookerjee, M. N.; Singh, R. V.; Tandon, J. P., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1981, vol. 20, # 3, p. 246 - 248
Mookerjee, M. N.; Singh, R. V.; Tandon, J. P., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1981, vol. 20, # 3, p. 246 - 248