@article{EJDE_2001__2001__a59,
     author = {Tintarev, K.},
     title = {Semilinear elliptic problems on unbounded subsets of the {Heisenberg} group},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2001},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2001__2001__a59/}
}