Bluhm, R.; Lämmerzahl, Claus (2006). Ehlers, JüRgen; Lämmerzahl, Claus (eds.). Overview of the Standard Model Extension: implications and phenomenology of Lorentz violation. Lecture Notes in Physics. Vol. 702. Springer Berlin / Heidelberg. pp. 191–226. doi:10.1007/b11758914. ISBN978-3-540-34522-0.
Dickinson, Michael H.; Lehmann, Fritz-Olaf; Sane, Sanjay P. (1999). "Wing rotation and the aerodynamic basis of insect flight". Science. 284 (5422): 1954–1960. doi:10.1126/science.284.5422.1954. PMID10373107.
Dickinson, Michael H.; Lehmann, Fritz-Olaf; Sane, Sanjay P. (1999). "Wing rotation and the aerodynamic basis of insect flight". Science. 284 (5422): 1954–1960. doi:10.1126/science.284.5422.1954. PMID10373107.