HASTENRATH, S.; CAUKWELL, R. A. Variations of Lewis Glacier, Mount Kenya, 1982-86. ERDKUNDE, [S. l.], v. 41, n. 1, p. 37–41, 1987. DOI: 10.3112/erdkunde.1987.01.04. Disponível em: https://www.erdkunde.uni-bonn.de/article/view/2116. Acesso em: 30 apr. 2025.