@misc{indiciaec1f2df71f4f6,
  title = {Lunar gravity - A long-term Keplerian rate method},
  author = {Ferrari, A. J. and Ananda, M. P.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770059161},
  note = {Source identifier: 19770059161}
}