• [Wiki] http://en.wikipedia.org/wiki/Natrix_maura.
• [EoL] https://eol.org/pages/458673.
• [stevenbol] https://stevenbolgartersnakes.com/species/natrix-maura/.
• [AubrBlan2015] Aubret, F., Blanvillain, G., and Kok, P. J. R. (2015). Myth busting? effects of embryo positioning and egg turning on hatching success in the water snake Natrix maura. Nature Scientific Reports, 5:13385. doi:10.1038/srep13385.
• [HailDavi1987] Hailey, A. and Davies, P. (1987). Growth, movement and population dynamics of Natrix maura in drying river. Herpetological Journal, 1:185--194.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.