1. Bassani, R., Villani, S. (1995), “Ring Axially Magnetized Passive Magnetic bearing”, Appl. Mech Engrs, 1-n° 1,77–96.
2. Bassani, R., Villani, S. (1999), “Passive Magnetic Bearings: the Conic-Shaped Bearing”, Proc. Inst. Mech. Engrs, 213-Part 1,151–161.
3. Bassani, R., Ciulli, E., Di Puccio, F., Musolino, A. (2000), “Study of Conic Permanent Magnet Bearings”, I° Int. AIMETA Congr. (Accepted).
4. Bhushan, B. (1999), Principles and Applications of Tribology, J. Wiley & Sons Inc., 1020.
5. Earnshaw, S. (1842), “On the Nature of molecular forces which regulate the constitution of luminoferous ether”, Trans. Comb. Phil. Soc, 7, 97–112.