@misc{indiciae66673036c211,
  title = {Linear systems analysis program, L224(QR). Volume 2: Supplemental system design and maintenance document},
  author = {Heidergott, K. W.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19800002852},
  note = {Source identifier: 19800002852}
}