1. Ackermann, T.: A note on the Wodzicki residue. J. Geom. Phys. 20, 404–406 (1996)
2. Connes, A.: Quantized calculus and applications. In: 11th International Congress of Mathematical Physics, vol. 1995, pp. 15–36. Internat Press. Cambridge, MA, Paris (1994)
3. Connes, A.: The action functional in noncommutative geometry. Commun. Math. Phys. 117, 673–683 (1998)
4. Fedosov, B.V., Golse, F., Leichtnam, E., Schrohe, E.: The noncommutative residue for manifolds with boundary. J. Funct. Anal. 142, 1–31 (1996)
5. Gilkey, P.B.: Invariance Theory, the Heat Equation, and the Atiyah-Singer Index Theorem. Vol 11 of mathematics Lecture Series, Publish or Perish Inc., Wilmington (1984)