M. Hamzeh, Samer, et al. “Conductance and Thermodynamics Study of Interaction of Some Transition Metals With Mixed Oxygen-Nitrogen Donors Macrocycles in Acetonitrile Solution”. Asian Journal of Chemistry, vol. 27, no. 2, Jan. 2015, pp. 674-8, doi:10.14233/ajchem.2015.17579.