@article{MTA_2017_2_1_a1,
     author = {Rossella Bartolo,Alessio Fiscella},
     title = {Multiple {Solutions} for a {Class} of {Schr} \ensuremath{\ddot{}} odinger {Equations} {Involving} the {Fractional} {p-Laplacian}},
     journal = {Minimax theory and its applications},
     year = {2017},
     volume = {2},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/MTA_2017_2_1_a1/}
}