PIERSMA, Theunis. Population turnover in groups of wing-moulting waterbirds: the use of a natural marker in Great Crested Grebes. Wildfowl, [S. l.], p. 37–45, 1987. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/154813. Acesso em: 17 dec. 2025.