%0 Journal Article %A Konrad Gröger %A Joachim Rehberg %T Resolvent estimates in W -1,p for second order elliptic differential operators in case of mixed boundary conditions. %J Mathematische Annalen %D 1989 %P 105-114 %V 285 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1989__285_1_164588/ %F MAN_1989__285_1_164588