1. R.L.Bislinghoff, H.Ashley and R.L.Halfman, Aeroelasticity, Addison-Wesley, Reading, Mass.
2. M.Goland and Y.L.Luke, "A study of the Bending-Torsion Aeroleastic Modes for Airplane Wings", J.Aeronautical Sciences, Vol.16, No.7, 1949.
3. P.K.C. Wang and J.D. Wei, "Vibrations in a Moving Flexible Robot Arm", J.Sound and Vibration, Vol.116, No.1, 1987, pp.149–160.
4. P.K.C. Wang and J.D. Wei, "Feedback Control of Vibrations in a Moving Flexible Robot Arm with Rotary and Prismatic Joints", Proc. International Conf. on Robotics and Automation, Raleigh, N.C. Mar. 1987, Vol.3, pp.1683–1689.
5. V.V. Bolotin, The Dynamic Stability of Elastic Systems, Holden Day, San Francisco, 1964.