%0 Journal Article %A S. V. Matveev %T Roots and decompositions of three-dimensional topological objects %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2012 %P 459-507 %V 67 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_2012_67_3_a1/ %G en %F RM_2012_67_3_a1