• [Wiki] http://en.wikipedia.org/wiki/Helix_pomatia.
• [Wiki_he] https://en.wikipedia.org/wiki/Heliciculture.
• [animalbase] http://www.animalbase.uni-goettingen.de/zooweb/servlet/AnimalBase/home/species?id=812.
• [ADW] http://animaldiversity.org/accounts/Helix_pomatia/#950a73096c94a6a8cc69857eb1621557.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.