Prasad, J., and S.N. Singh. “Electron Impact Studies on the N-Formylderivative of Ethyl Cyano-2-O-Aminophenylhydrazono Acetate”. Asian Journal of Chemistry, vol. 16, no. 2, Aug. 2016, pp. 633-8, https://asianpubs.org/index.php/ajchem/article/view/14497.