Pethon, Per, and Lars P. Hansen. “Migration Pattern of Atlantic Salmon Smolts Salmo Salar L. Released at Different Sites in the River Drammenselv, SE Norway”. Fauna norvegica 11 (December 31, 1990): 17-22. Accessed November 22, 2024. https://www.ntnu.no/ojs/index.php/fauna_norvegica/article/view/6061.