LIESS, M.; GLASER, B.; HUWE, B. Digital Soil mapping in Southern Ecuador. ERDKUNDE, [S. l.], v. 63, n. 4, p. 309–319, 2009. DOI: 10.3112/erdkunde.2009.04.02. Disponível em: https://www.erdkunde.uni-bonn.de/article/view/2638. Acesso em: 30 apr. 2025.