TY - JOUR AU - Costa, David G. TI - On a class of elliptic systems in \(\mathbb R^n\) JO - Electronic journal of differential equations PY - 1994 VL - 1994 IS - 7 UR - http://geodesic.mathdoc.fr/item/EJDE_1994__1994_7_a0/ LA - en ID - EJDE_1994__1994_7_a0 ER -