A classification theorem for nuclear purely infinite simple C * -algebras. Phillips, N.Christopher (2000) Documenta Mathematica
A K-theoretic relative index theorem and Callias-type Dirac operators. Ulrich Bunke (1995) Mathematische Annalen
Algebraic K -theory of Fredholm modules and K K -theory. Kandelaki, Tamaz (2006) Journal of Homotopy and Related Structures
Approche de la conjecture de Novikov par la cohomologie cyclique Georges Skandalis (1990/1991) Séminaire Bourbaki