1. Estimation of angular velocity and acceleration from shaft encoder measurements;Bélanger,1992
2. Robust control of robots using only position measurements, Memorandum no. 1073;Berghuis,1992
3. accepted for IFAC World Congress 1993, Sydney, Australia.
4. Observer design in the tracking control problem of robots;Berghuis,1992
5. Robot control via robust estimated state feedback;de Wit;IEEE Trans. Automat. Control,1991