1. L.D. Harmon: “Automated Tactile Sensing”, Int. J. Robotics Research, 1 (1982) 2, pp.3–32.
2. P.Dario, D. de Rossi: “Tactile sensors and the gripping challenge”, IEEE Spectrum, Aug.1985, pp.46–52.
3. S.Takeda: “Study of artificial tactile sensors for shape recognition”, Proc. 4th Int. Symp. on Industrial Robots, Nov. 1974, Tokyo, pp.199 – 208.
4. C.J.Page, A.Pugh, W.B.Heginbotham: “Novel techniques for tactile sensing in a three-dimensional environment”, Proc. 6th Int. Symp. on Industrial Robots, March 1976, Nottingham, U.K., pp.C4–33 to C4–46.
5. B.V.Jayawant, J.D.McWatson: “Array sensor for tactile sensing in robotic applications”, IEE Colloq. on Solid State and Smart Sensors, March 1988, London, IEE Digest 1988/39, pp.8/1–8/4