Boosaeeidi, F., G.H. Rounaghi, and A. Ghaemi. 2010. “Conductometric Studies of Solvent Influence Upon Complex Formation Between 4?-Nitrobenzo-15-Crown-5 and Ni2+, Co2+ and Cu2+ in Acetonitrile-Methanol Binary Mixtures”. Asian Journal of Chemistry 20 (8):6369-75. https://asianpubs.org/index.php/ajchem/article/view/12994.