F. R. do Nascimento, M. J. N. de Souza, and M. L. B. da Cruz, “FOCUS GEOENVIRONMENT FOR THE TREATMENT OF DEGRADATION/DESERTIFICATION IN THE MUNICIPAL DISTRICT OF SOBRAL - NORTHEAST OF BRASIL/CEARÁ”, Atelie Geogr., vol. 1, no. 2, pp. 80–101, Dec. 2007, doi: 10.5216/ag.v1i2.3015.