1. Pornsin-sirirak T N, Tai Y, Ho C, et al. Microbat: A palm-sized electrically powered ornithopter. In: Proceedings of the NASA/JPL Workshop on Biomorphic Robotics, 2001. 17
2. Platzer M F, Jones K D, Young J, et al. Flapping wing aerodynamics: Progress and challenges. AIAA J, 2008, 46: 2136–2149
3. Bradshaw N, Lentink D. Aerodynamic and structural dynamic identification of a flapping wing micro air vehicle. In: Proceedings of the 26th AIAA Applied Aerodynamics Conference. Honolulu, Hawaii: American Institute of Aeronautics and Astronautics, 2008
4. Zhao L, Huang Q, Deng X, et al. Aerodynamic effects of flexibility in flapping wings. J R Soc Interface, 2010, 7: 485–497
5. Keennon M, Klingebiel K, Won H. Development of the nano hummingbird: A tailless flapping wing micro air vehicle. In: Proceedings of the 50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition. Nashville, Tennessee: American Institute of Aeronautics and Astronautics, 2012. 588