HASTENRATH, S.; CAUKWELL, R. A. Variations of Lewis Glacier, Mount Kenya, 1974-78. ERDKUNDE, [S. l.], v. 33, n. 4, p. 292–297, 1979. DOI: 10.3112/erdkunde.1979.04.06. Disponível em: https://journals-test.ulb.uni-bonn.de/index.php/erdkunde/article/view/1889. Acesso em: 7 oct. 2024.