@article{GT_2002_6_1_a3,
     author = {Bestvina, Mladen and Fujiwara, Koji},
     title = {Bounded cohomology of subgroups of mapping class groups},
     journal = {Geometry & topology},
     pages = {69--89},
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {2002},
     doi = {10.2140/gt.2002.6.69},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/gt.2002.6.69/}
}