Mahapatra, B. B., and A. Sarangi. “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 Journal of Scientific and Industrial Research, vol. 46, no. 2, Aug. 2011, pp. 259-64, doi:10.3329/bjsir.v46i2.3558.