@article{RM_2012_67_3_a1,
     author = {S. V. Matveev},
     title = {Roots and decompositions of three-dimensional topological objects},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {459--507},
     year = {2012},
     volume = {67},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2012_67_3_a1/}
}