%0 Journal Article %A Ya. Z. Tsypkin %T Optimal direct adaptive control for systems with lag %J Doklady Akademii Nauk %D 1986 %P 1092-1096 %V 287 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1986_287_5_a15/ %G ru %F DAN_1986_287_5_a15