@article{IVM_1998_12_a1,
     author = {R. A. Berdysheva and V. A. Emelichev},
     title = {Some forms of stability of a~combinatorial problem of lexicographic optimization},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {11--21},
     publisher = {mathdoc},
     number = {12},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1998_12_a1/}
}