%0 Journal Article %A A. S. Bortakovskii %T Sufficient Optimality Conditions for Hybrid Systems of Variable Dimension %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2020 %P 88-100 %V 308 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2020_308_a6/ %G ru %F TM_2020_308_a6