Dash, A. C.; Nanda, R. K.; Ray, N., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1984, vol. 23, # 11, p. 907 - 910
Dash, A. C.; Nanda, R. K.; Ray, N., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1984, vol. 23, # 11, p. 907 - 910