TY - JOUR AU - L. D. Kudryavtsev TI - Variational problems with free ends on bounded and unbounded intervals JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1988 SP - 137 EP - 146 VL - 181 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_1988_181_a7/ LA - ru ID - TM_1988_181_a7 ER -