Delgado-Chavero, C. L., Zapata-Márquez, E., García-Casco, J. M., & 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), 157–165. https://doi.org/10.3989/gya.130412