@article{02104404, title = {Peripheral separability and cusps of arithmetic hyperbolic orbifolds.}, journal = {Geometry \& Topology}, volume = {8}, year = {2004}, pages = {721-755}, doi = {10.2140/agt.2004.4.721}, zbl = {1058.57012}, language = {en}, url = {http://dml.mathdoc.fr/item/02104404} }
McReynolds, D.B. Peripheral separability and cusps of arithmetic hyperbolic orbifolds.. Geometry & Topology, Tome 8 (2004) pp. 721-755. doi : 10.2140/agt.2004.4.721. http://gdmltest.u-ga.fr/item/02104404/