%0 Journal Article %A Martin Fuchs %A Frank Duzaar %T Variational Problems with Non-Convex Obstacles an and Integral-Constraint for Vector-Valued Functions. %J Mathematische Zeitschrift %D 1986 %P 585-592 %V 191 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1986__191_173702/ %F MZ_1986__191_173702