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2. N. V. Valishvili, Methods for Design of Shells of Revolution on a Computer [in Russian], Mashinostroenie, Moscow (1974).
3. A. S. Vol’mir, Stability of Elastic Systems [in Russian], Fizmatgiz, Moscow (1963).
4. V. V. Gaidaichuk, E. A. Gotsulyak, and V. I. Gulyaev, “Inverse problem of the nonlinear stability of a spherical shell of variable thickness,” Int. Appl. Mech., 13, No. 2, 112–116 (1977).
5. É. I. Grigolyuk and G. M. Kulikov, Reinforced Multilayer Shells: Design of Pneumatic Tires [in Russian], Mashinostroenie, Moscow (1988), p. 288.