Muralidharan, S.; Udupa, M. R.; Nagaraja, K. S., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1988, vol. 27, # 1, p. 76 - 77
Muralidharan, S.; Udupa, M. R.; Nagaraja, K. S., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1988, vol. 27, # 1, p. 76 - 77