@misc{indiciae2aa8834065e2,
  title = {Applications of quasi-VLBI tracking data types to the zero declination and process noise problems},
  author = {Ondrasik, V. J. and Rourke, K. H.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710062369},
  note = {Source identifier: 19710062369}
}