JÄRVINEN, O.; VÄISÄNEN, R. A. Correction coefficients for line transect censuses of breeding birds. Ornis Fennica, [S. l.], v. 60, n. 4, p. 97–104, 1983. Disponível em: https://ornisfennica.journal.fi/article/view/133137. Acesso em: 9 may. 2024.