WIKTANDER, U.; NILSSON, I. N.; NILSSON, S. G.; OLSSON, O.; PETTERSSON, B.; STAGEN, A. Occurrence of the Lesser Spotted Woodpecker Dendrocopos minor in relation to area of deciduous forest. Ornis Fennica, [S. l.], v. 69, n. 3, p. 113–118, 1992. Disponível em: https://ornisfennica.journal.fi/article/view/133347. Acesso em: 17 touko. 2024.