@article{IM_1969__9_142016,
     author = {CH. GOULAOUIC and P. GRISVARD},
     title = {Existence de traces pour les \'el\'ements d'espaces de distributions d\'efinis comme domaines d'op\'erateurs differentiels maximaux.},
     journal = {Inventiones mathematicae},
     pages = {308--317},
     publisher = {mathdoc},
     volume = {9},
     year = {1969},
     zbl = {0175.14902},
     url = {http://geodesic.mathdoc.fr/item/IM_1969__9_142016/}
}