@misc{indiciaeddbcf7f40a12,
  title = {Building a lunar observatory - An engineer's time table},
  author = {Chua, Koon Meng and Johnson, Stewart W. and Hicks, Jeffrey D.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910043023},
  note = {Source identifier: 19910043023}
}