%0 Journal Article %A Casolo, Carlo %T Wielandt series and defects of subnormal subgroups in finite soluble groups %J Rendiconti del Seminario Matematico della Università di Padova %D 1992 %P 93-104 %V 87 %I Seminario Matematico of the University of Padua %U http://archive.numdam.org/item/RSMUP_1992__87__93_0/ %G en %F RSMUP_1992__87__93_0