Borja, R., J. Alba, A. Martín, A. Ruiz, and F. Hidalgo. “Characterization and Anaerobic Digestion of Waters from Washing of Virgin Olive Oil”. Grasas y Aceites 44, no. 2 (April 30, 1993): 85–90. Accessed December 10, 2022. https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1102.