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 UR - http://geodesic.mathdoc.fr/item/EJDE_2000__2000__a120/ LA - en ID - EJDE_2000__2000__a120 ER -