@article{BUMI_2011_9_4_3_a0,
     author = {Ambrosetti, Antonio},
     title = {On the {Number} of {Solutions} of {Some} {Semilinear} {Elliptic} {Problems}},
     journal = {Bollettino della Unione matematica italiana},
     pages = {313--319},
     publisher = {mathdoc},
     volume = {Ser. 9, 4},
     number = {3},
     year = {2011},
     zbl = {1235.35125},
     mrnumber = {2906763},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BUMI_2011_9_4_3_a0/}
}