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2. G. A. Van Fo Fy, Reinforced Plastic Structures [in Russian], Tekhnika, Kyiv (1971).
3. G. A. Vanin and N. P. Semenyuk, Stability of Composite Shells with Imperfections [in Russian], Naukova Dumka, Kyiv (1987).
4. R. M. Christensen, Mechanics of Composite Materials, Willey, New York (1979).
5. R. B. Rikards and G. A. Teters, Stability of Composite Shells [in Russian], Zinatne, Riga (1974).