@misc{indiciae1f7049db7bbe,
  title = {Linear systems analysis program, L224(QR). Volume 1: Engineering and usage},
  author = {Shah, P. C. and Heidergott, K. W.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19800005880},
  note = {Source identifier: 19800005880}
}