%0 Journal Article %A L. D. Kudryavtsev %T Variational problems with free ends on bounded and unbounded intervals %J Informatics and Automation %D 1988 %P 137-146 %V 181 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1988_181_a7/ %G ru %F TRSPY_1988_181_a7