TY - JOUR AU - S. Kh. Aranson TI - Topological invariants of vector fields in a~disc on a~plane with limit sets of Cantor type JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1990 SP - 157 EP - 158 VL - 45 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1990_45_4_a3/ LA - en ID - RM_1990_45_4_a3 ER -