[Happ1968]
Happold, D. C. D. (1968).
Observations on Gerbillus pyramidum (Gerbillinae,
Rodentia) at Khartoum, Sudan.
Mammalia, 32(1):198–208. doi:10.1515/mamm.1968.32.1.44M.
[Kooy2010]
Kooijman, S. (2010).
Dynamic Energy Budget theory for metabolic organisation.
Cambridge Univ. Press, Cambridge.