Briedis M., Hahn S., Gustafsson L., Henshaw I., Träff J., Král M., Adamík P. Breeding latitude leads to different temporal but not spatial organization of the annual cycle in a long-distance migrant (англ.) // Journal of Avian Biology. — 2016. — Vol. 47, no. 6. — P. 743–748. — doi:10.1111/jav.01002.