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@article{CMH_1996__71_2_140402, author = {Gaven J. Martin}, title = {Triangle subgroups of {Kleinian} groups.}, journal = {Commentarii mathematici Helvetici}, pages = {339--361}, publisher = {mathdoc}, volume = {71}, number = {2}, year = {1996}, zbl = {0865.30059}, url = {http://geodesic.mathdoc.fr/item/CMH_1996__71_2_140402/} }
Gaven J. Martin. Triangle subgroups of Kleinian groups.. Commentarii mathematici Helvetici, Tome 71 (1996) no. 2, pp. 339-361. http://geodesic.mathdoc.fr/item/CMH_1996__71_2_140402/