1. Appropriate Human Involvement in Assembly and Disassembly;Bley;Annals of the CIRP,2004
2. Intelligent Assist Systems for Flexible Assembly;Krüger;Annals of the CIRP,2006
3. Control of Robotic Systems in Contact Tasks;Vukobratović,2002
4. An Analysis of Contact Instability in Terms of Passive Physical Equivalents;Colgate,1989
5. Relaxing Passivity for Human–Robot Interaction;Buerger,2006