@misc{indiciaebda556073adf,
  title = {Robotic space colonies},
  author = {Weisbin, C. R. and Schenker, P. S. and Easter, R. and Rodriguez, G.},
  year = {2001},
  url = {https://ntrs.nasa.gov/citations/20060031269},
  note = {Source identifier: 20060031269}
}