K. agarwal, Suresh, and Subhash Chand. “Synthesis and Structural Studies on Ternary Complexes of VO(IV) ZrO(IV) With Isonitrosoacetophenone-2-Picoloyl-Hydrazone As Primary and 1-(o-Methoxy-Anilinomethyl)-5-Phenoxybenzimidazolen As Secondary Ligand <”;. Asian Journal of Chemistry, vol. 12, no. 3, Mar. 2010, pp. 843-6, https://asianpubs.org/index.php/ajchem/article/view/23071.