TY  - JOUR
AU  - M. Boileau
AU  - H. Zieschang
TI  - Hegaard genus of closed orientable Seifert 3-manifolds.
JO  - Inventiones mathematicae
PY  - 1984
SP  - 455
EP  - 468
VL  - 76
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM_1984__76_143132/
ID  - IM_1984__76_143132
ER  -