Sreeletha, G.S. “Thermal Decomposition Kinetics and Mechanism of Lanthanide Nitrato Complexes of Pyridine-2-Carboxaldehyde-4-Aminoantipyrine and Dimethylsulfoxide”. Asian Journal of Chemistry, vol. 17, no. 2, Jan. 2016, pp. 1073-7, https://asianpubs.org/index.php/ajchem/article/view/14290.