@misc{indiciae3425659bc1f1,
  title = {Operational data processing: The first ten years are the hardest},
  author = {Leese, J. A. and Bristor, C. L.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780006533},
  note = {Source identifier: 19780006533}
}