PALMGREN, P. Die Einwanderung des Teichrohrsängers, Acrocephalus s. scirpaceus (Herm.), in Finnland. Ornis Fennica, [S. l.], v. 11, n. 4, p. 77–84, 1934. Disponível em: https://ornisfennica.journal.fi/article/view/132312. Acesso em: 26 dec. 2024.