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♦ ¹"Food preference data by faecal analysis for African Plains ungulates.", STEWART, D. R. M.; STEWART, J., Zoologica Africana 1970 Vol. 5 No. 1 pp. 115-129
♦ ²Co-existence and niche segregation of three small bovid species in southern Mozambique, Herbert H.T. Prins, Willem F. de Boer, Herman van Oeveren, Augusto Correia, Jorge Mafuca and Han Olff, 2006 East African Wild Life Society, Afr. J. Ecol., 44, 186–198