@article{DAN_1994_334_1_a3,
     author = {V. L. Levin},
     title = {Exchange models with indivisible goods and the realizability of},
     journal = {Doklady Akademii Nauk},
     pages = {16--19},
     year = {1994},
     volume = {334},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1994_334_1_a3/}
}