1. Adams RJ (1999) Stable haptic interaction with virtual environments, Ph.D. Thesis, University of Washington, Dept Electrical Engineering
2. An J, Kwon D-S (2005) Control of multiple DoF hybrid haptic interface with active/passive actuators. In: Proc IEEE/RSJ Int Conf Intelligent Robots and Systems, Edmonton, pp 2556-2561
3. Angeles J (1997) Fundamentals of Robotic Mechanical Systems: Theory, Methods, and Algorithms, Springer, New York
4. Avizzano CA, Raspolli M, Marcheschi S, Bergamasco M (2005) Haptic desktop for office automation and assisted design. In: Proc IEEE Int Conf Robotics and Autom, pp 4086-4091
5. Avizzano CA, Raspolli M; Fontana M, Frisoli A, Bergamasco M, Design of haptic interfaces. Enactive Network ( https://www.enactivenetwork.org )