* "A Forgotten History-Concentration Camps were used by Germans in South West Africa", Casper W. Erichsen, in the "Mail and Guardian", Johannesburg, 17 August 2001.
* "A Forgotten History-Concentration Camps were used by Germans in South West Africa", Casper W. Erichsen, in the "Mail and Guardian", Johannesburg, 17 August, 2001.