1. Measurement of solid friction parameters of ball bearings;Dahl,1977
2. Adaptive compensation of an optical tracking telescope;Gilbart;Automatica,1974
3. Control system analysis and synthesis for a six degree of freedom universal force-reflecting hand controller;Handlykken,1980
4. Joint torque control by direct feedback for industrial robots;Luh,1981
5. Active stiffness control of a manipulator in Cartesian coordinates;Salisbury,1980