TY - JOUR AU - V. A. Il'in TI - Optimization of the Boundary Control of an Elastic Force at One Endpoint of a String with the Other Endpoint Fixed JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 2005 SP - 117 EP - 123 VL - 248 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_2005_248_a11/ LA - ru ID - TM_2005_248_a11 ER -