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@article{BNYMS_1893__2_186515, author = {F.N. Cole}, title = {The {Transitive} {Substitution-Groups} of {Nine} {Letters.}}, journal = {Bulletin of the New York Mathematical Society}, pages = {250--258}, publisher = {mathdoc}, volume = {2}, year = {1893}, zbl = {25.0206.02}, url = {http://geodesic.mathdoc.fr/item/BNYMS_1893__2_186515/} }
F.N. Cole. The Transitive Substitution-Groups of Nine Letters.. Bulletin of the New York Mathematical Society, Tome 2 (1893), pp. 250-258. http://geodesic.mathdoc.fr/item/BNYMS_1893__2_186515/