PHILIPPSON, A. Zur Theorie der Flußerosion. ERDKUNDE, [S. l.], v. 1, n. 2, p. 212–213, 1947. DOI: 10.3112/erdkunde.1947.02.15. Disponível em: https://journals-test.ulb.uni-bonn.de/index.php/erdkunde/article/view/862. Acesso em: 3 dec. 2024.