%0 Journal Article %A M. Kalka %T Deformation of Submanifolds of Strongly Negatively Curved Manifolds. %J Mathematische Annalen %D 1980 %P 243-248 %V 251 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1980__251_163438/ %F MAN_1980__251_163438