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@article{MZ_1996__223_3_174908, author = {Paul Schmutz}, title = {Arithmetic {Fuchsian} groups and the number of systoles.}, journal = {Mathematische Zeitschrift}, pages = {13--26}, publisher = {mathdoc}, volume = {223}, number = {3}, year = {1996}, zbl = {0867.30032}, url = {http://geodesic.mathdoc.fr/item/MZ_1996__223_3_174908/} }
Paul Schmutz. Arithmetic Fuchsian groups and the number of systoles.. Mathematische Zeitschrift, Tome 223 (1996) no. 3, pp. 13-26. http://geodesic.mathdoc.fr/item/MZ_1996__223_3_174908/