@article{01928904, title = {Bounded cohomology of subgroups of mapping class groups.}, journal = {Geometry \& Topology}, volume = {6}, year = {2002}, pages = {69-89}, doi = {10.2140/gt.2002.6.69}, zbl = {1021.57001}, language = {en}, url = {http://dml.mathdoc.fr/item/01928904} }
Bestvina, Mladen; Fujiwara, Koji. Bounded cohomology of subgroups of mapping class groups.. Geometry & Topology, Tome 6 (2002) pp. 69-89. doi : 10.2140/gt.2002.6.69. http://gdmltest.u-ga.fr/item/01928904/