TY - JOUR AU - Tintarev, K. TI - Semilinear elliptic problems on unbounded subsets of the Heisenberg group JO - Electronic Journal of Differential Equations PY - 2001 VL - 2001 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EJDE_2001__2001__a137/ LA - en ID - EJDE_2001__2001__a137 ER -