@article{DA_1979_19_a3,
     author = {S. E. Gvozdev},
     title = {$\varepsilon$-optimal solution of some discrete extremal problems},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {31--39},
     publisher = {mathdoc},
     number = {19},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_1979_19_a3/}
}