@article{BNYMS_1893__3_186523, author = {E. Hastings Moore}, title = {A {Doubly-Infinite} {System} of {Simple} {Groups} {(Abstract).}}, journal = {Bulletin of the New York Mathematical Society}, pages = {73--79}, publisher = {mathdoc}, volume = {3}, year = {1893}, url = {http://geodesic.mathdoc.fr/item/BNYMS_1893__3_186523/} }