@misc{indiciae52c847ecc25c,
  title = {The Hubble Space Telescope servicing missions: Past, present, and future operational challenges},
  author = {William R Ochs and George M Barbehenn and William G Crabb},
  year = {1996},
  url = {https://ntrs.nasa.gov/citations/19970015895},
  note = {Source identifier: 19970015895}
}