@article{BUMI_2009_9_2_1_a5,
     author = {Badiale, Marino and Benci, Vieri and Rolando, Sergio},
     title = {Three {Dimensional} {Vortices} in the {Nonlinear} {Wave} {Equation}},
     journal = {Bollettino della Unione matematica italiana},
     pages = {105--134},
     publisher = {mathdoc},
     volume = {Ser. 9, 2},
     number = {1},
     year = {2009},
     zbl = {1178.35263},
     mrnumber = {2493647},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BUMI_2009_9_2_1_a5/}
}