1. Bartholdi, L., Schick, T., Smale, N., Smale, S.: Hodge theory on metric spaces. Found. Comput. Math. 12(1), 1–48 (2012)
2. Fedosov, B.: A simple geometrical construction of deformation quantization. J. Differ. Geom. 40(2), 213–238 (1994)
3. Fomenko, A., Mishchenko, A.: The index of elliptic operators over $$C^*$$ C ∗ -algebras. Izv. Akad. Nauk SSSR Ser. Mat. 43(4), 831–859 (1979). 967
4. Habermann, K.: Basic properties of symplectic Dirac operators. Commun. Math. Phys. 184(3), 629–652 (1997)
5. Kostant, B.: Symplectic spinors. Symposia Mathematica, vol. XIV (Convegno di Geometria Simplettica e Fisica Matematica, INDAM, Rome, 1973), pp. 139–152. Academic Press, London (1974)