@misc{indiciaea7e3ce0b3088,
  title = {A world-wide lunar radar time synchronization system},
  author = {Baumgartner, W. S. and Easterling, M. F.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19700015568},
  note = {Source identifier: 19700015568}
}