%0 Journal Article %A Jan Chabrowski %T On multiple solutions of the Neumann problem involving the critical Sobolev exponent %J Colloquium Mathematicum %D 2004 %P 203-220 %V 101 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm101-2-5/ %R 10.4064/cm101-2-5 %G en %F 10_4064_cm101_2_5