• [Wiki] http://en.wikipedia.org/wiki/Isopsetta_isolepis.
• [fishbase] https://www.fishbase.se/summary/Isopsetta-isolepis.html.
• [Forr1969] Forrester, C. R. F. (1969). Life history information on some groundfish species. Technical Report technical report 105, Fisheries Research Board of Canada.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [Kutt1963] Kutty, M. K. (1963). An ecological study and theoretical considerations of butter sole (Isopsetts isolepis) population in Hecate Strait. PhD thesis, Univ of Britisch Colmbia.