A.  Bicchi, Dario, P., and Pinotti, P. C., ?On the Control of a Sensorized Artificial Finger for Tactile Exploration of Objects?, in Robot Control, L.  Basanez, Ferrate, G., and Saridis, G. N., Eds. Oxford, U. K.: Pergamon Press Books, 1986, pp. 251-256.