@misc{indiciaeb3287f2807db,
  title = {MINITRACK CALIBRATION SYSTEM},
  author = {Berbert, J. H. and Engels, P. D. and Habib, E. J. and Oosterhout, J. D.},
  year = {1963},
  url = {https://ntrs.nasa.gov/citations/19630019231},
  note = {Source identifier: 19630019231}
}