@misc{indiciaed470d271bdeb,
  title = {Mars rover 1988 concepts},
  author = {Pivirotto, Donna Shirley and Penn, Thomas J. and Dias, William C.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19890039001},
  note = {Source identifier: 19890039001}
}