1. M. Kontsevich, “Deformation quantization of Poisson manifolds. I,” arXiv:q-alg/9709040.
2. M. Kontsevich, “Deformation quantization of Poisson manifolds,” Lett. Math. Phys. 66, 157–216 (2003).
3. B. V. Fedosov, “Index theorems,” Itogi Nauki Tekh., Sovrem. Probl. Mat. Fundam. Napravl. 65, 165–268 (1991).
4. A. Belov-Kanel and M. Kontsevich, “The Jacobian conjecture is stably equivalent to the Dixmier conjecture,” Moscow Math. J. 7, 209–218 (2007).
5. I. M. Krichever, “Commutative rings of ordinary linear differential operators,” Funkts. Anal. Prilozh. 12 (3), 21–30 (1978).