@article{PMIHES_1971__40__59_0,
     author = {Coburn, L. A. and Douglas, R. G.},
     title = {$C^\ast $ algebras of operators on a half-space},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {59--68},
     publisher = {Institut des Hautes \'Etudes Scientifiques},
     volume = {40},
     year = {1971},
     mrnumber = {358417},
     zbl = {0241.47026},
     language = {en},
     url = {http://www.numdam.org/item/PMIHES_1971__40__59_0/}
}