%0 Journal Article %A Lewis A. Coburn %A Ronald G. Douglas %A David G. Schaeffer %A Isadore M. Singer %T $C^\ast $-algebras of operators on a half-space, II. Index theory %J Publications Mathématiques de l'IHÉS %D 1971 %P 69-79 %V 40 %I Institut des Hautes Études Scientifiques %U https://pmihes.centre-mersenne.org/articles/10.1007/BF02684694/ %R 10.1007/BF02684694 %G en %F PMIHES_1971__40__69_0