The averaging principle for stochastic difference equations
English version (Springer): Ukrainian Mathematical Journal 41 (1989), no. 8, pp 872-878.
Citation Example: Anisimov V. V., Yurachkovskii A. P. The averaging principle for stochastic difference equations // Ukr. Mat. Zh. - 1989. - 41, № 8. - pp. 1022–1028.
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