@article{RLIN_2004_9_15_2_a1,
     author = {Ambrosetti, Antonio and Felli, Veronica and Malchiodi, Andrea},
     title = {Ground {States} of {Nonlinear} {Schr\"odinger} {Equations} with potentials vanishing at infinity},
     journal = {Atti della Accademia nazionale dei Lincei. Rendiconti Lincei. Matematica e applicazioni},
     pages = {81--86},
     publisher = {mathdoc},
     volume = {Ser. 9, 15},
     number = {2},
     year = {2004},
     zbl = {1225.35213},
     mrnumber = {1614571},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RLIN_2004_9_15_2_a1/}
}