1. 1Dowell, E. H., Aeroelasticity of Plates and Shells, 1st ed., edited by L. Meirovitch,Mechanics: Dynamical Systems Series, Noordhoff International, Leyden, The Netherlands,1975, Chap. 3, pp.35-50, Appendix I, pp. 109-119.
2. 5Bolotin, V. V., Nonconservative Problems of the Theory of Elastic Stability, 1st ed., edited by G. Herrmann, corrected and authorized ed.Macmillan, New York,1963, Chap. 4, pp.199-306(translated from Russian).