ZONNEVALD, J. Physical geography in the Netherlands. ERDKUNDE, [S. l.], v. 33, n. 1, p. 1–10, 1979. DOI: 10.3112/erdkunde.1979.01.01. Disponível em: https://journals-test.ulb.uni-bonn.de/index.php/erdkunde/article/view/1862. Acesso em: 12 dec. 2024.