%0 Journal Article %A E. Filloy %T Pointwise Characterization of Ideals of Differentiable Functions. %J Inventiones mathematicae %D 1971 %P 143-168 %V 13 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1971__13_142088/ %F IM_1971__13_142088