%0 Journal Article %A Rossella Bartolo %A Eduardo Colorado,Giovanni Molica Bisci %T Perturbed Problems Involving the Square Root of the Laplacian %J Minimax theory and its applications %D 2019 %V 4 %N 1 %U http://geodesic.mathdoc.fr/item/MTA_2019_4_1_a2/ %F MTA_2019_4_1_a2