Sahu, K. et al. 2010. Binuclear Metal Complexes of Cobalt (II) with the ligand 1,2,5,6-Tetraphenyl-3,4-Diaza-1,6-Dihydroxymino-2,4-Hexadiene. Asian Journal of Chemistry. 12, 4 (Mar. 2010), 1355–1357.