1. Bohlin, T., Hamrin, S., Heggberget, T. G., Rasmussen, G., & Saltveit, S. J. (1989). Electrofishing—Theory and practice with special emphasis on salmonids. Hydrobiologia, 173(1), 9–43.
2. Fish physiology, 32, 435–476;CJ Brauner,2013
3. Eaton, A. D., Clesceri, L. S., & Greenberg, A. E. (Eds.). (1995). Standard methods for the examination of water and wastewater (9th ed.). American Water Works Association & Water Environment Federation, Washington DC: American Public Health Association.
4. Eilers, J. M., Sullivan, T. J., & Hurley, K. C. (1990). The most dilute lake in the world? Hydrobiologia, 199(1), 1–6.
5. Enge, E. (2012). Fiskeundersøkelser i Rogaland i 2011. County Governor of Rogaland, Environmental Division. Report 1-2012. (In Norwegian, with English summary. Fish surveys in Rogaland County 2011).