• [Wiki] http://en.wikipedia.org/wiki/Dipturus_laevis.
• [fishbase] http://www.fishbase.org/summary/Dipturus-laevis.html.
• [ADW] https://animaldiversity.org/accounts/Dipturus_laevis/.
• [GedaDuPa2005] Gedamke, T., DuPaul, W. D., and Musick, J. A. (2005). Observations on the life history of the barndoor skate, Dipturus laevis, on Georges Bank (Western North Atlantic). VIMS Articles, 1763. doi:10.1080/00288330.2001.9517045.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.