TY - RPRT TI - Workspace Safe Operation of a Force- or Impedance-Controlled Robot AU - Abdallah, Muhammad E. AU - Hargrave, Brian AU - Yamokoski, John D. AU - Strawser, Philip A. PY - 2013 UR - https://ntrs.nasa.gov/citations/20140016591 ID - 20140016591 ER -