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Acácio, Marta; Mullers, Ralf H. E.; Franco, Aldina M. A.; Willems, Frank J.; Amar, Arjun (2021-08-04). „Changes in surface water drive the movements of Shoebills”. Scientific Reports (на језику: енглески). 11 (1): 15796. Bibcode:2021NatSR..1115796A. ISSN2045-2322. doi:10.1038/s41598-021-95093-5.
Acácio, Marta; Mullers, Ralf H. E.; Franco, Aldina M. A.; Willems, Frank J.; Amar, Arjun (2021-08-04). „Changes in surface water drive the movements of Shoebills”. Scientific Reports (на језику: енглески). 11 (1): 15796. Bibcode:2021NatSR..1115796A. ISSN2045-2322. doi:10.1038/s41598-021-95093-5.