@misc{indiciae8220d4fc43b8,
  title = {On 'Type L' multivariable linear systems.},
  author = {Sandell, N., Jr. and Athans, M.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19730034331},
  note = {Source identifier: 19730034331}
}