%0 Journal Article %A Michael GrĂ¼ter %T Optimal regularity for codimension one minimal surfaces with a free boundary. %J Manuscripta mathematica %D 1987 %P 295-344 %V 58 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1987__58_155224/ %F MM2_1987__58_155224