%0 Journal Article %A D. B. Silin %T Riemann integrability of an optimal control in linear time-optimal problems %J Izvestiya. Mathematics %D 1985 %P 183-192 %V 25 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1985_25_1_a8/ %G en %F IM2_1985_25_1_a8