1. 1AlinAlbu-SchäfferandGerdHirzinger. Cartesianimpedancecontroltechniquesfortorquecontrolledlight-weightrobots. InProceedingsofthe 2002IEEInternationalConferenceonRoboticsandAutomation,May2002.
2. 3CraigCarignanandDavidAkin. Usingrobotsforastronauttraining. IEEEControlSystemsMagazine,April2003.
3. 5ScottChristiansenandTroyNilson.Dockingsystemforautonomous,un-manneddockingoperations. InProceedingsofthe2008IEEEAerospace Conference,pages1-14,March2008.