Chaudhuri, S. K.; Roy, P. S.; Ghosh, A. K., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1984, vol. 23, # 11, p. 917 - 919
Chaudhuri, S. K.; Roy, P. S.; Ghosh, A. K., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1984, vol. 23, # 11, p. 917 - 919