%0 Journal Article %A Heil, Wolfgang %A Whitten, Wilbur %T The Seifert Fiber Space Conjecture and Torus Theorem for Nonorientable 3-Manifolds %J Canadian mathematical bulletin %D 1994 %P 482-489 %V 37 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1994-070-7/ %R 10.4153/CMB-1994-070-7 %F 10_4153_CMB_1994_070_7