L. E. López-Dávila, L. J. Jiménez-Hernández, D. C. O. Romero-Romero, and D. C. I. J. Dewulf, “Applying anaerobic digestion technology for treating solid waste agroindustrial using pig manure inoculum in mesophilic conditions”, TQ, vol. 32, no. 3, pp. 313-322, Feb. 2016.