1. B.S. EVANS, R.S. STONE and P.N. BRETT (1994) An adaptive gripper system for handling compact dough-like materials. EURISCON ‘94 Proceedings Spain p. 1335.
2. A. MADWED (1985) A new gripper system to handle many different parts for assembly by robots. Robots 9 Conf. Proceedings June 2–6 Detroit, Michigan p. 11. 83.
3. A. KARAKEREZIS, M. IPPOLITO, Z. DOULGERI, K. RIZZI and V. PETRIDIS (1994) A flexible gripping system for handling irregular flat non rigid materials. EURISCON ’94 Proceedings Spain. 1365.
4. P. ABREU and P.N. BRETT (1994) An active gripper for handling prismatic shaped nonrigid products. EURISCON ’94 Proceedings Spain p. 1351.
5. R. TELLA, J.R. BIRL, and R.B. KELLEY (1982) General purpose hands for bin picking robots. IEEE Transaction on Systems, Man, and Cybernetics, 12 /6, p. 828.