Graciani Constante, E., F. Rodríguez Berbel, A. Paredes Torronteras, and J. Huesa Lope. “Deacidification by Distillation Using Nitrogen As Stripper. Possible Application to the Refining of Edible Fats”. Grasas Y Aceites, vol. 42, no. 4, Aug. 1991, pp. 286-92, doi:10.3989/gya.1991.v42.i4.1235.