Singh, P.K. “Synthesis, EPR and Optical Properties of Oxovanadium(IV) Complexes With Tris(2-Aminoethyl Amine) and Substituted Imidazoles”. Asian Journal of Chemistry 17, no. 3 (May 13, 2016): 1575–1578. Accessed June 30, 2024. https://asianpubs.org/index.php/ajchem/article/view/14035.