@article{MZ_1993__213_1_174530,
     author = {Wolfgang Borchers and Werner Varnhorn},
     title = {On the boundness of the {Stokes} semigroup in two-dimensional exterior domains.},
     journal = {Mathematische Zeitschrift},
     pages = {275--300},
     year = {1993},
     volume = {213},
     number = {1},
     zbl = {0794.35070},
     url = {http://geodesic.mathdoc.fr/item/MZ_1993__213_1_174530/}
}