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2. Ya. G. Panovko and I. I. Gubanov, Stability and Vibrations of Elastic Systems (Fizmatlit, 1987) [in Russian].
3. M. A. Lavrent’ev and A. Yu. Ishlinskii, “Dynamic Buckling Modes of Elastic Systems,” Dokl. Akad. Nauk 64 (6), 779–782 (1949) [in Russian].
4. M. A. Il’gamov, Vibrations of Elastic Shells Containing a Liquid and Gas (Nauka, 1969) [in Russian].
5. M. P. Paidouisis, “Flatter of Conservative Systems of Pipes Conveying Incompressible Fluid,” J. Mech. Ing. Sci. 17, 19–25 (1975).