Guerrero Molina, M. A., P. Ledesma Jurado, and M. Pantoja Conde. “Differentiate Parameters Between Feedings in Iberian Pigs and Application of Classification Intelligent Technologies”. Grasas Y Aceites, vol. 47, no. 3, June 1996, pp. 127-35, doi:10.3989/gya.1996.v47.i3.852.