![](http://www.rhinoresourcecenter.com/style_images/1/cat_arrow.gif) | Wilhelm, J.H., 1950. Das Wild des Okawangogebietes und des Caprivizipfels. Journal of the South-West Africa Scientific Society 7: 1-7
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![](http://www.rhinoresourcecenter.com/style_images/1/cat_arrow.gif) | Wilhelm, J.H., 1933. Das Wild des Okawangogebietes und des Caprivizipfels. Journal of the South-West Africa Scientific Society 6: 51-74, figs. 1-15
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