%0 Journal Article %A I. V. Lisachenko %A V. I. Sumin %T On singular controls in the sense of the maximum principle for terminal optimization problem connected with Goursat--Darboux system %J Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta %D 2012 %P 80-81 %V 39 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IIMI_2012_39_1_a36/ %G ru %F IIMI_2012_39_1_a36