@article{10_4064_ap_71_3_253_271,
     author = {Diego Averna and Gabriele Bonanno},
     title = {Existence of solutions for a multivalued boundary value problem with non-convex and unbounded right-hand side},
     journal = {Annales Polonici Mathematici},
     pages = {253--271},
     publisher = {mathdoc},
     volume = {71},
     number = {3},
     year = {1999},
     doi = {10.4064/ap-71-3-253-271},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-71-3-253-271/}
}