%0 Journal Article %A J.C.C. NITSCHE %T The Boundary Behavior of Minimal Surfaces. Kellogg's Theorem and Branch Points on the Boundary. %J Inventiones mathematicae %D 1969 %P 313-333 %V 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1969__8_141990/ %F IM_1969__8_141990