D.  Prattichizzo, Mercorelli, P., Bicchi, A., and Vicino, A., ?Geometric Disturbance Decoupling Control of Vehicles with Active Suspensions?, in Proc. IEEE Conf. on Control Applications, 1998, pp. 253-257. 

D.  Prattichizzo, Mercorelli, P., Bicchi, A., and Vicino, A., ?On the Geometric Control of Internal Forces in Power Grasp?, in Proc. Conf. on Decision and Control, 1997. 

D.  Prattichizzo, Mercorelli, P., Bicchi, A., and Vicino, A., ?Geometric Control Techniques for Manipulation Systems?, in Proceeding Int. Conf. Computer Integrated Systems, Belfort, France, 1997. 

D.  Prattichizzo, Mercorelli, P., Bicchi, A., and Vicino, A., ?Geometric Control Techniques for Mechanical Systems?, in Int. Conf. Italian Association for Theretical and Applied Mechanics, Siena, Italia, september 29 - October 3 1997, 1997.