@misc{indiciae497170d1c50c,
  title = {Solar system tests for changing gravity},
  author = {Williams, J. G. and Anderson, J. D. and Boggs, D. H. and Lau, E. L. and Dickey, J. O.},
  year = {2001},
  url = {https://ntrs.nasa.gov/citations/20060031392},
  note = {Source identifier: 20060031392}
}