PALMGREN, P. Tagesrhythmik gekafigter Kleinvögel bei konstanter Dauerbeleuchtung. Ornis Fennica, [S. l.], v. 21, n. 1, p. 25–30, 1944. Disponível em: https://ornisfennica.journal.fi/article/view/132450. Acesso em: 17 touko. 2024.