Gracia, A., and L. León. “Non-Destructive Assessment of Olive Fruit Ripening by Portable Near Infrared Spectroscopy”. Grasas y Aceites 62, no. 3 (September 30, 2011): 268–274. Accessed May 2, 2024. https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1324.