Borja Padilla, R., M. M. Durán Barrantes, and M. Luque González. “Aerobic Purification of the Effluents Produced in the Olive Mill Wastewater Biomethanation Process”. Grasas Y Aceites, vol. 43, no. 1, Feb. 1992, pp. 20-25, doi:10.3989/gya.1992.v43.i1.1192.