%0 Journal Article %A Infante, Gennaro %A Pietramala, Paolamaria %T Perturbed Hammerstein integral inclusions with solutions that change sign %J Commentationes Mathematicae Universitatis Carolinae %D 2009 %P 591-605 %V 50 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_2009__50_4_a8/ %G en %F CMUC_2009__50_4_a8