@article{MZ_1992__210_1_174412,
     author = {Reinhard Farwig},
     title = {A variational approach in weighted {Sobolev} spaces to the operator - ... + .../... {X1} in exterior domains of {IR3.}},
     journal = {Mathematische Zeitschrift},
     pages = {449--464},
     publisher = {mathdoc},
     volume = {210},
     number = {1},
     year = {1992},
     zbl = {0727.35041},
     url = {http://geodesic.mathdoc.fr/item/MZ_1992__210_1_174412/}
}