• [Wiki] http://en.wikipedia.org/wiki/Anser_caerulescens.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Chen_caerulescens.
• [GautFour2006] Gauthier, G., Fournier, F., and Larochelle, J. (2006). The effect of environmental conditions on early growth in gees. British Poultry Science, 29:53--61.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [PrinPres1991] Prinzinger, R., A.Preßmar, and Schleucher, E. (1991). Body temperature in birds. Comp. Biochem. Physiol., 99A(4):499--506. doi:10.1016/0300-9629(91)90122-S.