@article{02057399,
title = {The modular group action on real },
journal = {Geometry \& Topology},
volume = {7},
year = {2003},
pages = {443-486},
doi = {10.2140/gt.2003.7.443},
zbl = {1037.57001},
language = {en},
url = {http://dml.mathdoc.fr/item/02057399}
}
Goldman, William M. The modular group action on real . Geometry & Topology, Tome 7 (2003) pp. 443-486. doi : 10.2140/gt.2003.7.443. http://gdmltest.u-ga.fr/item/02057399/