%0 Journal Article %A Roland Girgensohn %T Functional equations and nowhere differentiable functions. %J Aequationes mathematicae %D 1993 %P 243-256 %V 46 %N 2-3 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1993__46_2-3_137557/ %F AM2_1993__46_2-3_137557