%0 Journal Article %A V. I. Sumin %T On singular controls in the sense of the pointwise maximum principle in distributed optimization problems %J Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki %D 2010 %P 70-80 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VUU_2010_3_a8/ %G ru %F VUU_2010_3_a8