%0 Journal Article %A Karakostas, G.L. %A Tsamatos, P.Ch. %T Multiple positive solutions of some Fredholm integral equations arisen from nonlocal boundary-value problems %J Electronic Journal of Differential Equations %D 2002 %V 2002 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2002__2002__a251/ %G en %F EJDE_2002__2002__a251