Järvinen, A., J. Ylimaunu, and J. Hannila. “A Mixed Nesting Pair Parus Montanus and P. Cinctus in Finnish Lapland”. Ornis Fennica 62, no. 1 (March 31, 1985): 25–26. Accessed September 21, 2024. https://ornisfennica.journal.fi/article/view/133170.