SVENSSON, S. Dwarf egg in Long-tailed Skua Stercorarius longicaudus. Ornis Svecica, Lund, Sweden, v. 12, n. 3, p. 173–176, 2002. DOI: 10.34080/os.v12.22833. Disponível em: https://journals.lub.lu.se/os/article/view/22833. Acesso em: 22 may. 2022.