EBBINGE, Barwolt; VAN DEN BERGH, Leo; VAN HAPEREN, Anton; LOK, Martin; PHILIPPONA, Jules; ROOTH, Jan; TIMMERMAN, Arend. Numbers and distribution of wild geese in The Netherlands, 1979-1984. Wildfowl, [S. l.], p. 28–34, 1986. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/154784. Acesso em: 16 dec. 2025.