Hildén, O. (1983). A hybrid Parus ater x P. montanus found in Finland. Ornis Fennica, 60(2), 58–61. Noudettu osoitteesta https://ornisfennica.journal.fi/article/view/133125
Ornis Fennica is a peer-reviewed international ornithological journal published by BirdLife Finland. We publish analytical and experimental papers on the ecology, behaviour and biogeography of birds. Ornis Fennica is published quarterly with online early practice.