• [Wiki] http://en.wikipedia.org/wiki/Dipturus.
• [fishbase] http://www.fishbase.org/summary/Dipturus-trachyderma.html.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [LicaCern2007] Licandeo, R., Cerna, F., and Céspedes, R. (2007). Age, growth, and reproduction of the roughskin skate, Dipturus trachyderma, from the southeastern Pacific. ICES Journal of Marine Science, 64:141--148. doi:10.1080/00288330.2001.9517045.