%0 Journal Article %A Godefroy, G. %A Montesinos, V. %A Zizler, V. %T Strong subdifferentiability of norms and geometry of Banach spaces %J Commentationes Mathematicae Universitatis Carolinae %D 1995 %P 493-502 %V 36 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1995__36_3_a10/ %G en %F CMUC_1995__36_3_a10