%0 Conference Paper %B Proc. Int. Conf. FAST - BIAS %D 1993 %T A variable structure approach to force/motion control of robot manipulators %A A. Balestrino %A A. Bicchi %A A. Landi %A D Prattichizzo %K Robotics %B Proc. Int. Conf. FAST - BIAS %C Milan, Italy, November 23-25 1993 %G eng