%0 Journal Article %A J. Chabrowski %A Jianfu Yang %T On the Neumann problem for an elliptic system of equations involving the critical Sobolev exponent %J Colloquium Mathematicum %D 2001 %P 19-35 %V 90 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm90-1-2/ %R 10.4064/cm90-1-2 %G en %F 10_4064_cm90_1_2