 {{Cite journal| publisher = American Institute of Physics| doi = 10.1063/5.0071910| issn = 1070-6631| volume = 33| issue = 12| pages = 127118| last1 = Beaumont| first1 = Fabien| last2 = Murer| first2 = Sebastien| last3 = Bogard| first3 = Fabien| last4 = Polidori| first4 = Guillaume| title = Aerodynamics of a flapping wing as a function of altitude: New insights into the flight strategy of migratory birds| journal = Physics of Fluids| access-date = 2022-01-14| date = 2021| url = https://aip.scitation.org/doi/10.1063/5.0071910}}