TY - JOUR AU - A. Yu. Chirkov AU - V. N. Shevchenko TI - On the approximation of an optimal solution of the integer knapsack problem by optimal solutions of the integer knapsack problem with a~restriction on the cardinality JO - Diskretnyj analiz i issledovanie operacij PY - 2006 SP - 56 EP - 73 VL - 13 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DA_2006_13_2_a4/ LA - ru ID - DA_2006_13_2_a4 ER -