G.  Buttazzo, Bicchi, A., and Dario, P., ?Robot Tactile Perception?, in Sensor Based Robots: Algorithms and Architectures, C. S. G.  Lee, Ed. Berlin Heidelberg, Germany: Springer Verlag, 1992. 

A.  Bicchi and Buttazzo, G., ?Robotic Tactile Sensing: Skin-like and Intrinsic Approach?, in Intelligent Robotic Systems: Analysis, Design and Programming, S.  Tzafestas, Ed. New York, NY, USA: Marcel Dekker, 1991. 

M.  Bergamasco, Dario, P., Bicchi, A., and Buttazzo, G., ?Multi Sensor Integration for Fine Manipulation?, in Highly Redundant Sensing in Robotic Systems, vol. 58, J. T.  Tou and Balchen, J. G., Eds. Berlin Heidelberg, Germany: Springer Verlag, 1990, pp. 55-66. 

P.  Dario, Bicchi, A., Fiorillo, A., Buttazzo, G., and Francesconi, R., ?A Sensorized Scenario for Basic Investigation on Active Touch?, in Robot Sensors: Tactile and Non-Vision, A.  Pugh, Ed. Kempston, Bedford, U. K.: I. F. S. Publications Ltd., 1986, pp. 237-245.