@misc{indiciae0de41fbfa34d,
  title = {Invariance in linear systems},
  author = {Aggarwal, J. K. and Banks, H. T. and Mcclamroch, N. H.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19700050284},
  note = {Source identifier: 19700050284}
}