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@article{JRAM_1992__425_153397, author = {W.M. Goldman and John R. Parker}, title = {Complex hyperbolic ideal triangle groups.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {71--86}, publisher = {mathdoc}, volume = {425}, year = {1992}, zbl = {0739.53055}, url = {http://geodesic.mathdoc.fr/item/JRAM_1992__425_153397/} }
W.M. Goldman; John R. Parker. Complex hyperbolic ideal triangle groups.. Journal für die reine und angewandte Mathematik, Tome 425 (1992), pp. 71-86. http://geodesic.mathdoc.fr/item/JRAM_1992__425_153397/