• [Wiki] http://en.wikipedia.org/wiki/Kogia_sima.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Kogia_breviceps.
• [ADW] http://animaldiversity.org/accounts/Kogia_sima/.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [Plon2004] Plön, S. (2004). The status and natural history of pygmy (Kogia breviceps) and dwarf (K. sima) sperm whales off Southern Africa. PhD thesis, Rhodes University Grahamstown South Africa.