TY  - JOUR
AU  - V. L. Levin
TI  - A formula for the optimal value in the Monge–Kantorovich problem with a smooth cost function, and a characterization of cyclically monotone mappings
JO  - Sbornik. Mathematics
PY  - 1992
SP  - 533
EP  - 548
VL  - 71
IS  - 2
UR  - http://geodesic.mathdoc.fr/item/SM_1992_71_2_a16/
LA  - en
ID  - SM_1992_71_2_a16
ER  -