%0 Journal Article %A Nemat Nyamoradi %T Multiplicity results for a class of fractional boundary value problems %J Annales Polonici Mathematici %D 2013 %P 59-73 %V 109 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap109-1-5/ %R 10.4064/ap109-1-5 %G en %F 10_4064_ap109_1_5