%0 Journal Article %A N. A. Bobylev %A M. A. Krasnosel'skii %T On the approximate construction of self-oscillatory regimes in automatic control systems %J Doklady Akademii Nauk %D 1983 %P 267-271 %V 272 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1983_272_2_a1/ %G ru %F DAN_1983_272_2_a1