%0 Journal Article %A Wen, Guo Chun %T Oblique derivative problems for generalized Rassias equations of mixed type with several characteristic boundaries %J Electronic Journal of Differential Equations %D 2009 %V 2009 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a137/ %G en %F EJDE_2009__2009__a137