Stephanie Freitag i Terence J. Robinson (1993). "Phylogeographic patterns in mitochondrial DNA of the Ostrich (Struthio camelus).". The Auk 110 (3): 614–622.Full PDFArxivat 2012-08-05 a Wayback Machine.
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Stephanie Freitag i Terence J. Robinson (1993). "Phylogeographic patterns in mitochondrial DNA of the Ostrich (Struthio camelus).". The Auk 110 (3): 614–622.Full PDFArxivat 2012-08-05 a Wayback Machine.