JÄRVINEN, O.; VÄISÄNEN, R. A. How complete are the species lists of breeding birds in censuses of large areas?. Ornis Fennica, [S. l.], v. 54, n. 4, p. 160–165, 1977. Disponível em: https://ornisfennica.journal.fi/article/view/132952. Acesso em: 9 may. 2024.