Rollins, Paul, Val Kofoed, e Gustavo Athayde. 2011. “MAPPING COMPLEX GROUNDWATER FLOW PATHS: UNDERSTANDING PREFERENTIAL FLOW PATHS IN AQUIFER MATERIALS WITH DIFFERING POROSITIES”. Águas Subterrâneas, janeiro. https://aguassubterraneas.emnuvens.com.br/asubterraneas/article/view/28104.