TY - JOUR AU - A. Ballester-Bolinches AU - Luis M. Ezquerro AU - Alexander N. Skiba TI - On subgroups which cover or avoid chief factors of a~finite group JO - Algebra and discrete mathematics PY - 2009 SP - 18 EP - 28 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ADM_2009_4_a3/ LA - en ID - ADM_2009_4_a3 ER -