1. Topological invariants for substitution tilings and their associated C∗-algebras;Anderson;Ergodic Theory Dynam. Systems,1998
2. Elliptic operators, discrete groups and von Neumann algebras;Atiyah;Astérisque,1976
3. The index of elliptic operators, I;Atiyah;Ann. of Math.,1968
4. The index of elliptic operators, IV;Atiyah;Ann. of Math.,1971
5. Classifying spaces for proper actions and K-theory of group C∗-algebras;Baum,1994