@article{DM_2000_12_1_a7,
     author = {A. S. Asratyan and N. N. Kuzyurin},
     title = {Approximation of optima of integer programs of the packing--covering type},
     journal = {Diskretnaya Matematika},
     pages = {96--106},
     publisher = {mathdoc},
     volume = {12},
     number = {1},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2000_12_1_a7/}
}