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Bigun Yaroslav Yosipovich. Averaging in Multifrequency Systems of Differential-Functional Equations
: д.ф.-м.н. :
spec.. 01.01.02 - Диференційні рівняння :
presented. 2009-05-18; popup.evolution: .;
. – , 0509U000305.
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Updated: 2026-03-27
