1. K-Theory;Atiyah,1967
2. “Elliptic operators, discrete groups and von Neumann algebras”;Atiyah;Astérisque,1976
3. “Clifford Modules”;Atiyah;Topology,1964
4. “The index of elliptic operators II”;Atiyah;Ann. of Math. (2),1968
5. “The index of elliptic operators I”;Atiyah;Ann. of Math. (2),1968