%0 Journal Article %A A. Ballester-Bolinches %A Luis M. Ezquerro %A Alexander N. Skiba %T On subgroups which cover or avoid chief factors of a~finite group %J Algebra and discrete mathematics %D 2009 %P 18-28 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ADM_2009_4_a3/ %G en %F ADM_2009_4_a3