Mannschatz, Theresa, Karl-Heinz Feger, e Peter Dietrich. 2011. “Combination of Geophysical and Soil Mapping Methods Related to Reforestations in Semi-Arid Regions”. Águas Subterrâneas, janeiro. https://aguassubterraneas.emnuvens.com.br/asubterraneas/article/view/28114.