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4. Simitses, G.J.: Dynamic Snap-Through Buckling of Low Arches and Spherical Shells, Ph.D. Dissertation, Dept. of Aeronautics and Astronautics, Stanford Univ. Stanford, CA, 1965.
5. Humphreys, J.S.: On Dynamic Snap-Buckling of Shallow Arches, AIAA Journal, 4, No. 5, (1966), 878–886.