ARTURO FRANCISCO CHICA PÉREZJOSÉ ÁNGEL SILES LÓPEZ2026-01-292026-01-29201810.1016/j.renene.2017.07.1122-s2.0-85029438088https://www.scopus.com/inward/record.uri?eid=2-s2.https://ucocris.uco.es/handle/123456789/28426Renewable Energy, Sustainability and the EnvironmentEffect of microwave pretreatment on semi-continuous anaerobic digestion of sewage sludgeresearch article