TY - JOUR AU - V. L. Levin AU - A. A. Milyutin TI - The problem of mass transfer with a~discontinuous cost function and a~mass statement of the duality problem for convex extremal problems JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1979 SP - 1 EP - 78 VL - 34 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1979_34_3_a0/ LA - en ID - RM_1979_34_3_a0 ER -