%0 Journal Article
%A I. V. Lisachenko
%A V. I. Sumin
%T On singular controls of a~maximum principle for the problem of the Goursat--Darboux system optimization
%J Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki
%D 2015
%P 483-491
%V 25
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/VUU_2015_25_4_a4/
%G ru
%F VUU_2015_25_4_a4