%0 Journal Article %A A.S. Besicovitch %T Sets of points of non-differentiability of absolutely continuous functions and of divergence of Fejér sums. (On linear sets of fractional dimensions III) %J Mathematische Annalen %D 1935 %P 331-335 %V 110 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1935__110_159726/ %F MAN_1935__110_159726