Radha, N.; Begum, S. Dhoulath; Mary, J. Sahaya, Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1987, vol. 26, # 12, p. 1006 - 1008
Radha, N.; Begum, S. Dhoulath; Mary, J. Sahaya, Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1987, vol. 26, # 12, p. 1006 - 1008