Espregueira Themudo, Gonçalo; Rufino, Ana C.; Campos, Paula F. (2015-02-01). "Complete mitochondrial DNA sequence of the endangered giant sable antelope (Hippotragus niger variani): Insights into conservation and taxonomy". Molecular Phylogenetics and Evolution. 83 (#1): 242–249. doi:10.1016/j.ympev.2014.12.001. PMID25527983.
Espregueira Themudo, Gonçalo; Rufino, Ana C.; Campos, Paula F. (2015-02-01). "Complete mitochondrial DNA sequence of the endangered giant sable antelope (Hippotragus niger variani): Insights into conservation and taxonomy". Molecular Phylogenetics and Evolution. 83 (#1): 242–249. doi:10.1016/j.ympev.2014.12.001. PMID25527983.