$a Harvard University Herbaria, 14.03.2011 $u http://asaweb.huh.harvard.edu:8080/databases/botanists?id=140999
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$a Flora of Southern Africa : which deals with the territories of South Africa, Ciskei, Transkei, Lesotho, Swaziland, Bophuthatswana, Namibia, Botswana and Venda. Vol. 5 pt. 3, Dracaenaceae, Asparagaceae, Luzuriagaceae and Smilacaceae / by A. A. Obermeyer, K. L. Immelman and J. J. Bos. - Pretoria, 1992.