%0 Journal Article %A Michael Struwe %T The evolution of harmonic mappings with free boundaries. %J Manuscripta mathematica %D 1991 %P 373-384 %V 70 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1991__70_1_155596/ %F MM2_1991__70_1_155596