@article{DM_2007_19_1_a11,
     author = {O. A. Emets and T. N. Barbolina},
     title = {Classes of lexicographic equivalence in {Euclidean} combinatorial optimisation on arrangements},
     journal = {Diskretnaya Matematika},
     pages = {95--104},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2007_19_1_a11/}
}