@article{MZ_1961__76_169969,
     author = {Wolfgang Haken},
     title = {Ein {Verfahren} zur {Aufspaltung} einer {3-Mannigfaltigkeit} in irreduzible {3-Mannigfaltigkeiten.}},
     journal = {Mathematische Zeitschrift},
     pages = {427--467},
     publisher = {mathdoc},
     volume = {76},
     year = {1961},
     zbl = {0111.18803},
     url = {http://geodesic.mathdoc.fr/item/MZ_1961__76_169969/}
}