* Namibia 1 on 1, "The White Lady of the Brandberg" ([http://www.namibia-1on1.com/a-coastal/white-lady-of-brandberg-1.html])* Hugo Obermaier, Herbert Kühn: "Buschmannkunst.
* Namibia 1 on 1, "The White Lady of the Brandberg" ([http://www.namibia-1on1.com/a-coastal/white-lady-of-brandberg-1.html])* Hugo Obermaier, Herbert Kühn: "Buschmannkunst.