%0 Journal Article %A A. I. Malikov %T Ellipsoidal estimation of the state of discrete control systems by means of matrix comparison systems %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2004 %P 53-69 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2004_1_a7/ %G ru %F IVM_2004_1_a7