E. L. Pereira, C. M. M. Campos, e F. Motteran, “<b>Physicochemical study of pH, alkalinity and total acidity in a system composed of Anaerobic Baffled Reactor in series with Upflow Anaerobic Sludge Blanket reactor in the treatment of pig farming wastewater</b> - doi: 10.4025/actascitechnol.v35i3.14069”, Acta Sci. Technol., vol. 35, nº 3, p. 477–483, fev. 2013.