Delgado-Chavero, C.L., Zapata-Márquez, E., García-Casco, J.M. and Paredes-Torronteras, A. 2013. Statistical model for classifying the feeding systems of Iberian pigs through Gas Chromatography (GC-FID) and Isotope Ratio Mass Spectrometry (GC-C-IRMS). Grasas y Aceites. 64, 2 (Jun. 2013), 157–165. DOI:https://doi.org/10.3989/gya.130412.