On the external and internal resonance phenomena of the elastic bodies with the complex oscillations von N. Huzyk, P. Pukach, B. Sokil, M. Sokil, M. Vovk

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Method of normal oscillations and substantiation of the choice of parameters for certain nonlinear systems with two degrees of freedom von B. I. Sokil, A. P. Senyk, M. B. Sokil, A. Y. Lisnichuk

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Asymptotic method and wave theory of motion in studying the effect of periodic impulse forces on systems characterized by longitudinal motion velocity von B. I. Sokil, Ya. Pukach, A. P. Senyk, M. B. Sokil, A. I. Andrukhiv, M. I. Vovk

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