C. E. Gómez Camacho, B. Ruggeri, L. Mangialardi, M. Persico, and A. C. Luongo Malavé, “Continuous two-step anaerobic digestion (TSAD) of organic market waste: rationalising process parameters”, Int. J. Energy Environ. Eng., vol. 10, no. 4 (December 2019), Jul. 2019, doi: 10.1007/s40095-019-0312-1.