@misc{indiciaec43c018d1332,
  title = {Input-output properties of multiple-input, multiple-output discrete systems. II},
  author = {Desoer, C. A. and Wu, M. Y.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19710032630},
  note = {Source identifier: 19710032630}
}