• [Wiki] http://en.wikipedia.org/wiki/Gobius.
• [fishbase] https://fishbase.mnhn.fr/summary/Gobius-ophiocephalus.html.
• [Akyo2003] Akyol, O. (2003). Age, growth and reproduction period of grass goby (Zosterisessor ophiocephalus Pallas 1811) in the Bay of Izmir (Aegean Sea). Arch. Fish. Mar. Res., 50(2):220--224.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.