Navas, J., A. Tres, R. Codony, and F. Guardiola. “Optimization of Analytical Methods for the Assessment of the Quality of Fats and Oils Used in Continuous Deep Fat Frying”. Grasas Y Aceites, vol. 58, no. 2, June 2007, pp. 154-62, doi:10.3989/gya.2007.v58.i2.80.