Medri, Waldir, and Vandir Medri. “Optimization of Pond Systems for the Treatment of Swine Waste”. Semina: Ciências Exatas e Tecnológicas 25, no. 2 (December 15, 2004): 203–212. Accessed February 23, 2026. https://ojs.uel.br/revistas/uel/index.php/semexatas/article/view/1575.