@misc{indiciae56ff289cb33d,
  title = {Lunar Observatories: Why, Where, and When?},
  author = {Lowman, D. Paul, Jr. and Durst, Steve and Chen, Peter C.},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/19990063873},
  note = {Source identifier: 19990063873}
}