@misc{indiciaedc0a5aeaffd3,
  title = {Multivarable nyquist array method with application to turbofan engine control},
  author = {Leininger, G. G.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19810003591},
  note = {Source identifier: 19810003591}
}