%0 Journal Article %A I. V. Lisachenko %A V. I. Sumin %T The maximum principle for terminal optimization problem connected with Goursat--Darboux system in the class of functions having summable mixed derivatives %J Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki %D 2011 %P 52-67 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VUU_2011_2_a3/ %G ru %F VUU_2011_2_a3