%0 Journal Article %A Stefan Hildebrandt %T Maximum Principles for Minimal Surfaces and for Surfaces of Continuous Mean Curvature. %J Mathematische Zeitschrift %D 1972 %P 253-270 %V 128 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1972__128_171804/ %F MZ_1972__128_171804