TY  - JOUR
AU  - Kei Nakamura
TI  - The girth alternative for mapping class groups
JO  - Groups, geometry, and dynamics
PY  - 2014
SP  - 225
EP  - 244
VL  - 8
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4171/ggd/223/
DO  - 10.4171/ggd/223
ID  - 10_4171_ggd_223
ER  -