TY - JOUR AU - L. V. Polterovich TI - On transport in dynamical systems JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1988 SP - 251 EP - 252 VL - 43 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1988_43_1_a21/ LA - en ID - RM_1988_43_1_a21 ER -