@article{CMUC_2009__50_4_a8,
     author = {Infante, Gennaro and Pietramala, Paolamaria},
     title = {Perturbed {Hammerstein} integral inclusions with solutions that change sign},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {591--605},
     publisher = {mathdoc},
     volume = {50},
     number = {4},
     year = {2009},
     mrnumber = {2583136},
     zbl = {1212.45009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2009__50_4_a8/}
}