@misc{indiciae625388e9a9ba,
  title = {Economic considerations in space industrialization},
  author = {Ayres, R. U. and Ayres, L. W. and Criswell, D. R.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19800062215},
  note = {Source identifier: 19800062215}
}