1. P.N. Bibikov, P.P. Kulish, Dirac operators on quantum SU(2) group and quantum sphere, preprint, arXiv: q-alg/9608012, (1996).
2. M. Cahen, S. Gutt, Spin structures on compact simply connected Riemannian symmetric spaces, in Proceedings of the Workshop on Clifford Algebra, Clifford Analysis and their Applications in Mathematical Physics, Ghent 1988, Simon Stevin 62 (1988), pp. 209–242.
3. A. Connes, Gravity coupled with matter and the foundation of non-commutative geometry, Comm. Math. Phys. 182 (1996), 155–176.
4. A. Connes, M. Dubois-Violette, Noncommutative finite-dimensional manifolds. I. Spherical manifolds and related examples [R1], preprint, arXiv: math.QA/OI07070, 2001.
5. A. Connes, G. Landi, Noncommutative manifolds, the instanton algebra and isospectral deformations, Comm. Math. Phys. 221 (2001), 141–159.