%0 Journal Article %A Verfürth, Rüdiger %T Error estimates for some quasi-interpolation operators %J ESAIM: Mathematical Modelling and Numerical Analysis %D 1999 %P 695-713 %V 33 %N 4 %I EDP-Sciences %U http://geodesic.mathdoc.fr/item/M2AN_1999__33_4_695_0/ %G en %F M2AN_1999__33_4_695_0