@article{DA_2009_16_6_a5,
     author = {A. V. Pyatkin},
     title = {On the complexity of the maximum sum length vectors subset choice problem},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {68--73},
     publisher = {mathdoc},
     volume = {16},
     number = {6},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2009_16_6_a5/}
}