Basis of an averaging method for a class of differential-operator equations
English version (Springer): Ukrainian Mathematical Journal 36 (1984), no. 4, pp 412-415.
Citation Example: Zavalykut G. D. Basis of an averaging method for a class of differential-operator equations // Ukr. Mat. Zh. - 1984. - 36, № 4. - pp. 503 – 507.
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