@article{02213838,
title = {Optimality conditions and exact solutions of the two-dimensional Monge-Kantorovich problem.},
journal = {Zapiski Nauchnykh Seminarov POMI},
volume = {314},
year = {2004},
pages = {150-164},
doi = {10.1007/s10958-006-0061-6},
zbl = {1099.49028},
language = {en},
url = {http://dml.mathdoc.fr/item/02213838}
}
Levin, V.L. Optimality conditions and exact solutions of the two-dimensional Monge-Kantorovich problem.. Zapiski Nauchnykh Seminarov POMI, Tome 314 (2004) pp. 150-164. doi : 10.1007/s10958-006-0061-6. http://gdmltest.u-ga.fr/item/02213838/