PAULA JR, D.R.D., ROSTON, D.M., NOUR, E.A., MORAES, L.M. and CAMARGO, S.A.R.D. 2008. ANAEROBIC DIGESTION OF SEWAGE SLUDGE USING SEQUENTIAL REACTORS: START- UP AND SYSTEMS STABILIZATION . Revista Brasileira de Engenharia de Biossistemas. 2, 2 (Nov. 2008), 91–97. DOI:https://doi.org/10.18011/bioeng2008v2n2p91-97.