@article{DM_2001_13_2_a6,
     author = {M. K. Kravtsov and V. M. Kravtsov and E. V. Lukshin},
     title = {On noninteger vertices of the polytope of the three-index axial assignment problem},
     journal = {Diskretnaya Matematika},
     pages = {120--143},
     publisher = {mathdoc},
     volume = {13},
     number = {2},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2001_13_2_a6/}
}