¹Gowree, E.R., Jagadeesh, C., Talboys, E. et al. Vortices enable the complex aerobatics of peregrine falcons. Commun Biol 1, 27 (2018).

²B-2 Spirit Stealth Bomber: https://www.northropgrumman.com/what-we-do/aircraft/b-2-stealth-bomber

³Bruce I. Larrimer (2020). Beyond Tube-and-Wing: The X-48 Blended Wing-Body and NASA’s Quest to Reshape Future Transport Aircraft. NASA Aeronautics Book Series. https://www.nasa.gov/wp-content/uploads/2020/11/beyond_tube-and-wing_tagged.pdf?emrc=2e23ac