TY - JOUR AU - V. V. Dolotin TI - Algebraic Structure of the Space of Homotopy Classes of Cycles and Singular Homology JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 2004 SP - 142 EP - 146 VL - 246 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_2004_246_a8/ LA - ru ID - TM_2004_246_a8 ER -