TY - JOUR AU - M. S. Nikol'skii TI - Certain Covering Theorems and Their Application in Control Theory JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1999 SP - 264 EP - 274 VL - 224 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_1999_224_a16/ LA - ru ID - TM_1999_224_a16 ER -