Bifundamental fuzzy 2-sphere and fuzzy Killing spinors. Nastase, Horatiu, Papageorgakis, Constantinos (2010) SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
Brisure de symétrie spontanée et géométrie du point de vue spectral Alain Connes (1995/1996) Séminaire Bourbaki