@article{IVM_2012_3_a1,
     author = {M. K. Kravtsov and V. M. Kravtsov},
     title = {Types of maximally noninteger vertices of the relaxation polyhedron of the four-index axial assignment problem},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {9--16},
     publisher = {mathdoc},
     number = {3},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2012_3_a1/}
}