%0 Journal Article %A Biagio Ricceri %T A limit involving functions in $W^{1,p}_0(Ω)$ %J Colloquium Mathematicum %D 1999 %P 219-222 %V 82 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-82-2-219-222/ %R 10.4064/cm-82-2-219-222 %G en %F 10_4064_cm_82_2_219_222