%0 Journal Article %A J. Chabrowski %A Shusen Yan %T On the nonlinear Neumann problem at resonance with critical Sobolev nonlinearity %J Colloquium Mathematicum %D 2002 %P 141-150 %V 94 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm94-1-10/ %R 10.4064/cm94-1-10 %G en %F 10_4064_cm94_1_10