TY - JOUR AU - A. D. Aleksandrov AU - V. V. Strel'cov TI - The isoperimetric problem and extimates of the length of a~curve on a~surface JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1965 SP - 67 EP - 80 VL - 76 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_1965_76_a5/ LA - ru ID - TM_1965_76_a5 ER -