• [Wiki] https://en.wikipedia.org/wiki/Etheostoma_asprigene.
• [fishbase] https://www.fishbase.se/summary/Etheostoma-asprigene.html.
• [CummGrad1984] Cummings, K. S., Grady, J. M., and Burr, B. M. (1984). The life history of the mud darter, Etheostoma asprigene, in Lake Creek, Illinois. Technical report, Dept Energy and Natural Resources.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.