%0 Journal Article %A Peter Orlik %A Philip Wagreich %T Seifert n-Manifolds. %J Inventiones mathematicae %D 1975 %P 137-160 %V 28 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1975__28_142318/ %G en %F IM_1975__28_142318