Xavier de Oliveira, Mariana, and Bernardo Sayão Penna e Souza. 2013. “FRAGILITY OF STRANDS: RESISTANCE PENETRATION VERSUS RATE INFILTRATION IN DIFFERENT SUBORDERS OF ARGISSOIL IN URBAN AREA OF SÃO PEDRO DO SUL RS”. Revista Do Departamento De Geografia 25 (July): 37-55. https://doi.org/10.7154/RDG.2013.0025.0003.