%0 Journal Article %A A. I. Barkin %A A. L. Zelentsovskii %T Absolute stability of automatic control systems with a single nonlinear element %J Doklady Akademii Nauk %D 1984 %P 809-812 %V 276 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1984_276_4_a7/ %G ru %F DAN_1984_276_4_a7