Nummi, Petri, Veli-Matti Väänänen, Sari Holopainen, and Hannu Pöysä. “Duck–fish Competition in Boreal Lakes – a Review”. Ornis Fennica 93, no. 1 (March 31, 2016): 67–76. Accessed November 21, 2024. https://ornisfennica.journal.fi/article/view/133889.