%0 Journal Article %A Christov, Nicolai D. %A Konstantinov, Mihail M. %A Petkov, Petko Hr. %T Improved perturbation bounds for the continuous-time $H_{\infty}$-control problem %J Electronic transactions on numerical analysis %D 2015 %V 43 %I mathdoc %U http://geodesic.mathdoc.fr/item/ETNA_2015__43__a6/ %G en %F ETNA_2015__43__a6