Välikangas, I. (1927). Die Vogelberingung in Finnland im Jahre 1926. Ornis Fennica, 4(4), 99–104. Noudettu osoitteesta https://ornisfennica.journal.fi/article/view/132194
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.