%0 Journal Article %A V. A. Il'in %T Optimization of the Boundary Control of an Elastic Force at One Endpoint of a String with the Other Endpoint Fixed %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2005 %P 117-123 %V 248 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2005_248_a11/ %G ru %F TM_2005_248_a11