TY  - JOUR
AU  - Maher, Joseph
TI  - Heegaard gradient and virtual fibers
JO  - Geometry & topology
PY  - 2005
SP  - 2227
EP  - 2259
VL  - 9
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.2140/gt.2005.9.2227/
DO  - 10.2140/gt.2005.9.2227
ID  - GT_2005_9_4_a11
ER  -