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APA Citation
Rotics, S., Kaatz, M., Turjeman, S., Zurell, D., Wikelski, M., Sapir, N., Eggers, U., Fiedler, W., Jeltsch, F., & Nathan, R. (n.d.). early arrival at breeding grounds: Causes, costs and a trade‐off with overwintering latitude. Journal of animal ecology, 87, 1627–1638. http://access.bl.uk/ark:/81055/vdc_100070084651.0x00005d