MAHAPATRA, B. B.; NANDA, J.; PRADHAN, S. ?POLYMETALLIC COMPLEXES Part XLIV. Complexes of Cobalt (II), Nickel (II), Copper (II), Zinc (II), Cadmium (II) and Mercury II With Doubly-Bidentate N Z N Donor Chelating Azo Dye Ligands, 4,4’-Bis (2’-Hydroxy-l’-Naphthyl-Azo)-Diphenyl and l,4-. Pakistan Journal of Scientific & Industrial Research 1995, 38, 337-340.