[Geor2009]
George, W. (2009).
Reproduction in female gundis (Rodentia: Ctenodactylidae).
Journal of Zoology, 185(1):57–71. doi:10.1111/j.1469-7998.1978.tb03313.x.
[Kooy2010]
Kooijman, S. (2010).
Dynamic Energy Budget theory for metabolic organisation.
Cambridge Univ. Press, Cambridge.