@article{DA_2003_10_1_a2,
     author = {A. V. Plyasunov},
     title = {A two-level linear programming problem with a multivariant knapsack at the lower level},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {44--52},
     publisher = {mathdoc},
     volume = {10},
     number = {1},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2003_10_1_a2/}
}