%0 Journal Article %A Al-Refai, Mohammed %A Kavallaris, Nikos I. %T Bounds and critical parameters for a class of non-local problems %J Electronic Journal of Differential Equations %D 2006 %V 2006 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2006__2006__a174/ %G en %F EJDE_2006__2006__a174