1. Terminology of intervals in fish development;Balon;Journal of the Fisheries Research Board of Canada,1975
2. A preliminary telemetry study of the migration of silver European eel (Anguilla anguilla L.) in the River Mosel. Germany;Behrmann-Godel;Ecology of Freshwater Fish,2003
3. Bell , K.N.I. 2009 What comes down must go up: The migration cycle of juvenile-return anadromous taxa Haro , A.J. Smith , K.L. Rulifson , R.A. Moffitt , C.M. Klauda , R.J. Dadswell , M.J. Cunjak , R.A. Cooper , J.E. Beal , K.L. Avery , T.S. Challenges for diadromous fishes in a dynamic global environment 321 341
4. Sea trout migration in the Rhine delta;Bij de Vaate;Journal of Fish Biology,2003