@article{MZ_1962__80_170089,
     author = {Wolfgang Haken},
     title = {\"Uber das {Hom\"oomorphieproblem} der {3-Mannigfaltigkeiten.} {I.}},
     journal = {Mathematische Zeitschrift},
     pages = {89--120},
     publisher = {mathdoc},
     volume = {80},
     year = {1962},
     zbl = {0106.16605},
     url = {http://geodesic.mathdoc.fr/item/MZ_1962__80_170089/}
}