%0 Journal Article %A Neil S. Trudinger %T A priori Bounds and necessary conditions for solvability of prescribed curvature equations. %J Manuscripta mathematica %D 1990 %P 99-112 %V 67 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1990__67_1_155491/ %F MM2_1990__67_1_155491