Pérez, M. M., A. Yebra, M. Melgosa, N. Bououd, A. Asselman, and A. Boucetta. “Colorimetric Characterization and Classification of the Virgin Olive Oil from the Spanish-Moroccan Mediterranean Area”. Grasas y Aceites 54, no. 4 (December 30, 2003): 392–396. Accessed February 7, 2023. https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/226.