%0 Journal Article %A GrĂ¼ter, Michael %T Regularity at the free boundary of two-dimensional stationary harmonic maps %J Annales de l'I.H.P. Analyse non linĂ©aire %D 1998 %P 151-167 %V 15 %N 2 %I Gauthier-Villars %U http://archive.numdam.org/item/AIHPC_1998__15_2_151_0/ %G en %F AIHPC_1998__15_2_151_0