@article{10_2140_agt_2006_6_949,
     author = {Haglund, Fr\'ed\'eric},
     title = {Commensurability and separability of quasiconvex subgroups},
     journal = {Algebraic and Geometric Topology},
     pages = {949--1024},
     year = {2006},
     volume = {6},
     number = {2},
     doi = {10.2140/agt.2006.6.949},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2006.6.949/}
}