@misc{indiciae8e06e0a08dee,
  title = {Lunar Core and Tides},
  author = {Williams, J. G. and Boggs, D. H. and Ratcliff, J. T.},
  year = {2004},
  url = {https://ntrs.nasa.gov/citations/20040062389},
  note = {Source identifier: 20040062389}
}