@misc{indiciae15c64a8d1215,
  title = {VLBI clock synchronization},
  author = {Counselman, C. C., III and Shapiro, I. I. and Rogers, A. E. E. and Hinteregger, H. F. and Knight, C. A. and Whitney, A. R. and Clark, T. A.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780031873},
  note = {Source identifier: 19780031873}
}