• [Wiki] https://en.wikipedia.org/wiki/Rhynchobatus_laevis.
• [fishbase] https://www.fishbase.de/summary/Rhynchobatus-laevis.html.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [WhitSimp2014] White, J., Simpfendorfer, C. A., Tobin, A. J., and Heupel, M. R. (2014). Age and growth parameters of shark-like batoids. Journal of Fish Biology, 84:1340--1353. doi:10.1111/jfb.12359.