@article{MM2_1996__89_3_156156,
     author = {Ana Alonso and Alberto Valli},
     title = {Some remarks on the characterization of the space of tangential traces of {H(rot;} ...) and the construction of an extension operator.},
     journal = {Manuscripta mathematica},
     pages = {159--178},
     publisher = {mathdoc},
     volume = {89},
     number = {3},
     year = {1996},
     zbl = {0856.46019},
     url = {http://geodesic.mathdoc.fr/item/MM2_1996__89_3_156156/}
}