%0 Journal Article %A Mariano Giaquinta %T A Counter-Example to the Boundary Regularity of Solutions to Elliptic Quasilinear Systems. %J Manuscripta mathematica %D 1978 %P 217-220 %V 24 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1978__24_154543/ %F MM2_1978__24_154543