1.
Kuresoo A. Present status of Mute Swans Cygnus olor, Whooper Swans C. cygnus and Bewick’s Swans C. bewickii in the Eastern Baltic Region. Wildfowl [Internet]. 2013 Apr. 16 [cited 2025 Dec. 17];:214-7. Available from: https://tidsskrift.dk/Wildfowl/article/view/154972