%0 Journal Article %A Roland Girgensohn %T Nowhere differentiable solutions of a system of functional equations. %J Aequationes mathematicae %D 1994 %P 89-99 %V 47 %N 2-3 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1994__47_2-3_137571/ %F AM2_1994__47_2-3_137571