%0 Journal Article %A M. S. Nikol'skii %T On the lower alternating integral of Pontryagin in linear differential games of pursuit %J Sbornik. Mathematics %D 1987 %P 33-47 %V 56 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1987_56_1_a2/ %G en %F SM_1987_56_1_a2