1. Deimos Engenharia; Av. D. João II, Lt 1.17.01, Andar 10, 1998-023 Lisboa Portugal
2. Institute for Systems and Robotics; Instituto Superior Tecnico; Lisboa Portugal
3. Department of Electrical and Computer Engineering, Faculty of Science and Technology; University of Macau; Taipa Macau
4. Professor of EECS (emeritus); M.I.T.; USA