Adiguzel, R., Z. Ergin, and M. Sekerci. 2010. “Synthesis and Structural Characterization of Ni(II), Cu(II), Zn(II) and Cd(II) Complexes of Bis(2-Amino-1,3,4-Thiadiazole)”. Asian Journal of Chemistry 22 (5):3895-3902. https://asianpubs.org/index.php/ajchem/article/view/11627.