ILIEV, Mihail; TODOROV, Emil; RUSSEV, Ivan; POPGEORGIEV, Georgi; FOX, Anthony D.; PETKOV, Nicky. Wintering geese of northwestern Black Sea coasts: results of coordinated monitoring 2017–2022. Wildfowl, [S. l.], p. 101–117, 2025. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/156391. Acesso em: 16 dec. 2025.