@misc{indiciae200b4359f0ea,
  title = {Astrophysics of Reference Frame Tie Objects},
  author = {Johnston, Kenneth J. and Boboltz, David and Fey, Alan Lee and Gaume, Ralph A. and Zacharias, Norbert},
  year = {2004},
  url = {https://ntrs.nasa.gov/citations/20050186745},
  note = {Source identifier: 20050186745}
}