• [Wiki] http://en.wikipedia.org/wiki/Equus_quagga.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Equus_quagga.
• [ADW] http://animaldiversity.org/accounts/Equus_burchellii/.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [Smut1975] Smuts, G. L. (1975). Pre- and postnatal growth phenomena of Burchell's zebra Equus burchelli antiquorum. Koedoe, 18:69--102.