@misc{indiciaeae1140f8f2c2,
  title = {Lunar gravity - Preliminary estimates from lunar orbiter.},
  author = {Lorell, J. and Sjogren, W. L.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680038973},
  note = {Source identifier: 19680038973}
}