Mahapatra, B. B.; Sarangi, A. Polymetallic Complexes Part 91 Dimeric and Monomeric Complexes of Co^II, Ni^II, Cu^II, Zn^II, Cd^II and Hg^II With N∩O-O∩N and N⋒O Donor Bis-Bidentate and Bi-Dentate Azodye Ligands. Bangladesh J. Sci. Ind. Res. 2011, 46, 259-264.