%0 Journal Article %A France Križanič %T Linear Functionals On Banach Space And The Fundamental Lemma Of The Calculus Of Variations %J Publications de l'Institut Mathématique %D 1956 %P 59 %V _S_S_X %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/PIM_1956_S_S_X_10_a4/ %F PIM_1956_S_S_X_10_a4