%0 Journal Article %A M. I. Zelikin %A N. B. Melnikov %A R. Hildebrand %T The Topological Structure of the Phase Portrait of a~Typical Fiber of Optimal Synthesis for Chattering Problems %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2001 %P 125-152 %V 233 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2001_233_a4/ %G ru %F TM_2001_233_a4