Bakke, T. A., Jansen, P. A., & Brabrand, Åge. (1990). Susceptibility and resistance of brook lamprey, Lampetra planeri (Bloch), roach, Rutilus rutilus (L.) and perch, Perca fluviatilis L. to Gyrodactylus salaris Malmberg (Monogenea). Fauna Norvegica, 11, 23-26. https://doi.org/10.5324/fn.v11i0.6062