J. Castellanos-Rozo, J. A. Galvis-López, N. A. Merchán Castellanos, E. H. Manjarres-Hernández, and A. L. Rojas, “Assessment of two sludge stabilization methods in a wastewater treatment plant in Sotaquirá, Colombia”, Universitas Scientiarum, vol. 25, no. 1, pp. 17–36, Feb. 2020.