@article{EJDE_2000__2000__a120,
     author = {D'Aprile,  Teresa},
     title = {Behaviour of symmetric solutions of a nonlinear elliptic field equation in the semi-classical limit: {Concentration} around a circle},
     journal = {Electronic journal of differential equations},
     year = {2000},
     volume = {2000},
     zbl = {0954.35057},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2000__2000__a120/}
}