C. A. de Andrade, L. F. M. Silva, A. M. M. Pires, and A. R. Coscione, “Mineralization of carbon and nitrogen in soil after successive applications of sewage sludge”, PAB, vol. 48, no. 5, pp. 536–544, Jul. 2013, doi: 10.1590/S1678-3921.pab2013.v48.13084.