%0 Journal Article %A M. Bildhauer %A M. Fuchs %T Error estimates for obstacle problems Of higher order %J Zapiski Nauchnykh Seminarov POMI %D 2007 %P 5-18 %V 348 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2007_348_a0/ %G en %F ZNSL_2007_348_a0