Ojaste, I., A. Leito, P. Suorsa, A. Hedenström, K. Sepp, M. Leivits, U. Sellis, and Ülo Väli. “From Northern Europe to Ethiopia: Long-Distance Migration of Common Cranes (Grus Grus)”. Ornis Fennica, vol. 97, no. 1, Mar. 2020, pp. 12–25, doi:10.51812/of.133962.