@article{01533624,
title = {Normal all pseudo-Anosov subgroups of mapping class groups.},
journal = {Geometry \& Topology},
volume = {4},
year = {2000},
pages = {293-307},
doi = {10.2140/gt.2000.4.293},
zbl = {0962.57007},
language = {en},
url = {http://dml.mathdoc.fr/item/01533624}
}
Whittlesey, Kim. Normal all pseudo-Anosov subgroups of mapping class groups.. Geometry & Topology, Tome 4 (2000) pp. 293-307. doi : 10.2140/gt.2000.4.293. http://gdmltest.u-ga.fr/item/01533624/