• [Wiki] http://en.wikipedia.org/wiki/Testudo_graeca.
• [ADW] http://animaldiversity.org/accounts/Testudo_graeca/.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Testudo_graeca.
• [startortoises] http://startortoises.net/goldengreek-incubation.html.
• [HichZnar2016] Hichami, N., Znari, M., Naimi, M., and Namous, S. (2016). Clutch, egg and hatchling characteristics in the Souss valley tortoises, Testudo graeca soussensis Pieh, 2001 (Testudines: Testudinidae) from an arid steppe-land of West-Central Morocco, Africa. Journal of Herpetology, 65:21--32. doi:10.1080/21564574.2015.1136701.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [RitzClau2012] Ritz, J., Clauss, M., Streich, W. J., and Hatt, J.-M. (2012). Variation in growth and potentially associated health status in Hermann's and spur-thighed tortoise (Testudo hermanni and Testudo graeca). Zoo Biology, 31:705--717.