• [Wiki] http://en.wikipedia.org/wiki/Okamejei.
• [fishbase] http://www.fishbase.org/summary/Okamejei-acutispina.html.
• [JouLee2011] Joung, S.-J., Lee, P.-H., Liu, K.-M., and Liao, Y.-Y. (2011). Estimates of life history parameters of the sharpspine skate, Okamejei acutispina, in the northeastern waters of Taiwan. Fisheries Research, 108:258--267.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.