%0 Journal Article %A M. G. Pashchenko %T Lower bounds for the objective function in a~dynamic problem of the choice of optimal composition of machinery in a~two-level system %J Diskretnyj analiz i issledovanie operacij %D 1997 %P 40-53 %V 4 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DA_1997_4_1_a3/ %G ru %F DA_1997_4_1_a3