TY - JOUR AU - A. A. Agrachev AU - R. V. Gamkrelidze TI - On the orbits of groups of diffeomorphisms and flows JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1995 SP - 3 EP - 13 VL - 209 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_1995_209_a0/ LA - ru ID - TM_1995_209_a0 ER -