1. Agostini, F., Caprara, S., Ciccotti, G.: Do we have a consistent non-adiabatic quantum-classical mechanics? Europhys. Lett. 78(3), 6 (2007). doi: 10.1209/0295-5075/78/30001 . Art. 30001. MR2366698 (2008k:81004)
2. Graduate Texts in Mathematics;V.I. Arnol’d,1991
3. Berezin, F.A.: Metod Vtorichnogo Kvantovaniya, 2nd edn. Nauka, Moscow (1986). Edited and with a preface by M.K. Polivanov. MR89c:81001
4. Boccaletti, D., Catoni, F., Cannata, R., Catoni, V., Nichelatti, E., Zampetti, P.: The Mathematics of Minkowski Space-time and an Introduction to Commutative Hypercomplex Numbers. Springer, Berlin (2007)
5. Brodlie, A., Kisil, V.V.: Observables and states in p-mechanics. Adv. Math. Res. 5, 101–136 (2003). arXiv:quant-ph/0304023 . MR2117375