@misc{indiciaeca2b8c0e922e,
  title = {Technology for the future - Long range planning for space technology development},
  author = {Collier, Lisa D. and Breckenridge, Roger A. and Llewellyn, Charles P.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19920055995},
  note = {Source identifier: 19920055995}
}