@misc{indiciae4d1c78f9a834,
  title = {Lunar gravity models for improved Apollo orbit computation},
  author = {Felsentreger, T. L. and Murphy, J. P. and Ryan, J. W. and Wagner, C. A.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19700028128},
  note = {Source identifier: 19700028128}
}