@misc{indiciaefb12a3bd547e,
  title = {The Space Station Freedom evolution-phase - Crew-EVA demand for robotic substitution by task primitive},
  author = {Smith, Jeffrey H. and Estus, Jay and Heneghan, Cate and Nainan, Charles},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19890066085},
  note = {Source identifier: 19890066085}
}