NILSSON, Leif. Fluctuations and trends in the numbers of staging waterbirds in south Sweden in September 1973—2013. Ornis Svecica, Lund, Sweden, v. 24, n. 3–4, p. 129–146, 2014. DOI: 10.34080/os.v24.22558. Disponível em: https://journals.lub.lu.se/os/article/view/22558. Acesso em: 20 apr. 2024.