1. Trends in coastal fish stocks of the Baltic Sea;Ådjers;Boreal Environ. Res.,2006
2. Age and growth of perch, Perca fluviatilis L., in llyn tegid, north wales;Ali;Pakistan J. Zool.,1978
3. Fish migration studies in the Baltic Sea - a historical review;Aro;ICES Mar. Science Symposia,2002
4. Fish Production in Fresh Waters;Bagenal,1978
5. Aborren (Perca fluviatilis L.) I Tryggevælde Å (Master's Thesis);Bay,1985