Martines, Alexandre Martin, Cristiano Alberto de Andrade, and Elke Jurandy Bran Nogueira Cardoso. 2006. “Mineralization of the Organic Carbon in Soils Treated With Tannery Sludges”. Pesquisa Agropecuaria Brasileira 41 (7):1149-55. https://doi.org/10.1590/S1678-3921.pab2006.v41.7258.