%0 Journal Article %A Hélein, Frédéric %T Phenomena of compensation and estimates for partial differential equations %J Documenta mathematica %D 1998 %P 21-30 %V ICM Berlin 1998, Vol. III %I mathdoc %U http://geodesic.mathdoc.fr/item/DOCMA_1998__S9__a76/ %G en %F DOCMA_1998__S9__a76