Volke Haller, Víctor. “Effect of Soil Erosion on Maize Yield under Rainfed Conditions”. REVISTA TERRA LATINOAMERICANA 25, no. 4 (December 1, 2007): 399–408. Accessed December 26, 2024. https://terralatinoamericana.org.mx/index.php/terra/article/view/1394.