Xavier de Oliveira, M. and Penna e Souza, B.S. 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, (Jul. 2013), 37–55. DOI:https://doi.org/10.7154/RDG.2013.0025.0003.