B. Mahapatra, Bipin, A.K. Behera, and Promod K. Bhoi. 2010. “Polymetallic Complexes : Part XXXVI &Mdash; Z - Donor Bis-Bidentate Chelating Azodye Complexes of Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II) ”. Asian Journal of Chemistry 4 (4):873-78. https://asianpubs.org/index.php/ajchem/article/view/25164.