@article{IM_1975__28_142318,
     author = {Peter Orlik and Philip Wagreich},
     title = {Seifert {n-Manifolds.}},
     journal = {Inventiones mathematicae},
     pages = {137--160},
     publisher = {mathdoc},
     volume = {28},
     year = {1975},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM_1975__28_142318/}
}