%0 Journal Article %A W.M. Greenlee %A Christopher Beattie %T Convergence Rates for intermediate problems. %J Manuscripta mathematica %D 1987 %P 209-228 %V 59 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1987__59_155246/ %F MM2_1987__59_155246