Some problems in the comparison method in nonlinear mechanics
English version (Springer): Ukrainian Mathematical Journal 30 (1978), no. 6, pp 621-626.
Citation Example: Martynyuk A. A., Mitropolskiy Yu. A. Some problems in the comparison method in nonlinear mechanics // Ukr. Mat. Zh. - 1978. - 30, № 6. - pp. 823–829.
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