TY - JOUR AU - E. Hastings Moore TI - A Doubly-Infinite System of Simple Groups (Abstract). JO - Bulletin of the New York Mathematical Society PY - 1893 SP - 73 EP - 79 VL - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/BNYMS_1893__3_186523/ ID - BNYMS_1893__3_186523 ER -