%0 Journal Article %A Jan Chabrowski %A Jianfu Yang %T On the Neumann problem with combined nonlinearities %J Annales Polonici Mathematici %D 2005 %P 239-250 %V 85 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap85-3-5/ %R 10.4064/ap85-3-5 %G en %F 10_4064_ap85_3_5