BENGTSSON, Kenneth; OLSSON, Rolf. The Sand Martins Riparia riparia at Spillepeng—studies of a newly created colony. Ornis Svecica, Lund, Sweden, v. 12, n. 1–2, p. 75–82, 2002. DOI: 10.34080/os.v12.22839. Disponível em: https://journals.lub.lu.se/os/article/view/22839. Acesso em: 3 may. 2024.