Stepniewska, K., Ozarowska, A., Busse, P., Zehtindjiev, P., Ilieva, M., Hnatyna, O. and Meissner, W. (2018) “Fuelling strategies differ among juvenile Sedge and Reed Warblers along the eastern European flyway during autumn migration”, Ornis Fennica, 95(3), pp. 103–114. doi: 10.51812/of.133934.