TY - JOUR AU - D'Aprile, Teresa TI - Behaviour of symmetric solutions of a nonlinear elliptic field equation in the semi-classical limit: Concentration around a circle JO - Electronic Journal of Differential Equations PY - 2000 VL - 2000 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EJDE_2000__2000__a47/ LA - en ID - EJDE_2000__2000__a47 ER -