Bregnballe T, Amstrup O, Holm TE, Clausen P, Fox AD. Skjern River Valley, Northern Europe’s most expensive wetland restoration project: benefits to breeding waterbirds. Ornis Fenn [Internet]. 31 december 2014 [citerad 17 maj 2024];91(4):231–243. Tillgänglig vid: https://ornisfennica.journal.fi/article/view/133860