↑Ute Dieckmann: Haiom in the Etosha Region: A History of Colonial Settlement, Ethnicity and Nature Conservation. Basler Afrika Bibliographien, 2007, ISBN 978-3-905758-00-9, S. 20 und S. 378.
↑Charles Anderson: Lake Ngami (exploration and Discoveries During Four Years’ Wanderings in the Wilds of South Western Africa). Briar Patch Press, 1988.