1. Vibration of plates;Leissa;NASA SP-160,1969
2. Vibration of a simply-supported elliptical plate;Leissa;Journal of Sound and Vibration,1967
3. Vibration of free elliptical plates;Waller,1950
4. Hamilton's law applied to stationary and non-stationary motion of beams;Bailey;American Institute of Aeronautics and Astronautics,1973