@misc{indiciae387399fd78cf,
  title = {Testing relativistic gravity theories using radio tracking data from planetary orbiting spacecraft.},
  author = {Jordan, J. F. and Melbourne, W. G. and Anderson, J. D.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720048312},
  note = {Source identifier: 19720048312}
}