Borja Padilla, R., Garrido Fernández, A. and Durán Barrantes, M. M. (1992) “Kinetic study of anaerobic digestion process of wastewaters from ripe olive processing”, Grasas y Aceites, 43(6), pp. 317–321. doi: 10.3989/gya.1992.v43.i6.1126.