LÖTBERG, U.; ISAKSSON, N.; SÖDERLUND, L.; ÅKESSON, S. Conservation measures for the Caspian Tern Hydroprogne caspia at the largest colony in Sweden. Ornis Svecica, Lund, Sweden, v. 32, p. 26–37, 2022. DOI: 10.34080/os.v32.22569. Disponível em: https://journals.lub.lu.se/os/article/view/22569. Acesso em: 15 aug. 2022.