1. Rodden, William P., Theoretical and Computational Aeroelasticity, Crest Publishing, 2011, page4
2. Yates, J. E. "Flutter of Supersonic Wing-Body Configurations", AIAA paper 63-205
3. Flutter of Asymmetrically Swept Wings
4. Chen, G, Dugundji, J, "Experimental Aeroelasticity Behavior of Forward Swept Graphite/Epoxy Wings With Rigid Body Freedoms", AIAA paper 86-0971