@article{MZ_1992__210_1_174422,
     author = {G. Bourdaud and M.E.D. Kateb},
     title = {Calcul fonctionnel dans l'espace de {Sobolev} fractionnaire.},
     journal = {Mathematische Zeitschrift},
     pages = {607--614},
     publisher = {mathdoc},
     volume = {210},
     number = {1},
     year = {1992},
     zbl = {0759.46032},
     url = {http://geodesic.mathdoc.fr/item/MZ_1992__210_1_174422/}
}