1. B. Budiansky, R.W. Fralich, Effects of panel flexibility on natural vibration frequencies of box beams, NACA Technical Note TN-3070, 1954.
2. W.B. Fitcher, E.E. Kordes, Investigation of vibration characteristics of circular arc monocoque beams, NACA Report D-59, 1959.
3. R.G. Thomson, E.T. Kruszewski, Cross-sectional deformations of monocoque beams and their effects on the natural vibration frequencies, NACA Report D-987, 1961.
4. Theoretical and experimental study of coupled vibrations on channel beams;Klausbruckner;Journal of Sound and Vibration,1995
5. Free vibration analysis of axially loaded bending–tension coupled problems: a dynamic finite element;Hashemi;Computers and Structures,2000