SUTER, K. Die Oase Guerrara (Algerische Sahara). ERDKUNDE, [S. l.], v. 11, n. 1, p. 41–48, 1957. DOI: 10.3112/erdkunde.1957.01.04. Disponível em: https://journals-test.ulb.uni-bonn.de/index.php/erdkunde/article/view/1192. Acesso em: 8 oct. 2024.