%0 Journal Article %A V. B. Levenshtam %A G. L. Khatlamadzhiyan %T Extension of averaging theory to differential equations containing rapidly oscillating terms with large amplitudes. The problem of periodic solutions %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2006 %P 35-47 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2006_6_a3/ %G ru %F IVM_2006_6_a3