A. H. M. de Abreu, P. S. dos S. Leles, J. M. Alonso, E. L. da S. Abel, and R. R. de Oliveira, “Characterization of sewage sludge generated in Rio de Janeiro, Brazil, and perspectives for agricultural recycling”, Semina: Ciênc. Agrár., vol. 38, no. 4Supl1, pp. 2433–2448, Aug. 2017.