TY - JOUR AU - Zhang, Jiping TI - Finite Groups as the Union of Proper Subgroups JO - Serdica Mathematical Journal PY - 2006 SP - 259 EP - 268 VL - 32 IS - 2-3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SMJ2_2006_32_2-3_a7/ LA - en ID - SMJ2_2006_32_2-3_a7 ER -