%0 Journal Article %A V. G. Antonik %T Methods of non-local improvement in non-convex optimal control problems of special kind %J The Bulletin of Irkutsk State University. Series Mathematics %D 2010 %P 21-27 %V 3 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/IIGUM_2010_3_3_a1/ %G ru %F IIGUM_2010_3_3_a1