%0 Journal Article %A A. Yu. Kolesov %A Yu. S. Kolesov %T The Bogolyubov--Mitropol'skii reduction principle in the problem of parametric excitation of autowaves %J Doklady Akademii Nauk %D 1989 %P 837-840 %V 307 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_307_4_a15/ %G ru %F DAN_1989_307_4_a15