N. N. Bogolyubov's theorem for hyperbolic differential inclusions
English version (Springer): Ukrainian Mathematical Journal 39 (1987), no. 5, pp 524-527.
Citation Example: Klimenko S. S., Vityuk A. N. N. N. Bogolyubov's theorem for hyperbolic differential inclusions // Ukr. Mat. Zh. - 1987. - 39, № 5. - pp. 641–645.
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