@misc{indiciae72f79e51e322,
  title = {Normalization of Gravitational Acceleration Models},
  author = {Eckman, Randy A. and Brown, Aaron J. and Adamo, Daniel R.},
  year = {2011},
  url = {https://ntrs.nasa.gov/citations/20110023121},
  note = {Source identifier: 20110023121}
}