MITU, L., ANGELA KRIZA, and MARIANA DIANU. 2010. “Synthesis and Characterization of Cu(II), Ni(II), Co(II), Mn(II), Zn(II), Cd(II) Complexes of Isonicotinoylhydrazone-1-Methyl-2-Aldehydepyrrole”. Asian Journal of Chemistry 19 (7):5666-74. https://asianpubs.org/index.php/ajchem/article/view/13183.