@misc{indiciaed94eb23a8e29,
  title = {Robust performance of multiple tasks by a mobile robot},
  author = {Beckerman, Martin and Barnett, Deanna L. and Dickens, Mike and Weisbin, Charles R.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19900011081},
  note = {Source identifier: 19900011081}
}