@misc{indiciae1a116b2c18a9,
  title = {Another note on the transformation to canonical /phase-variable/ form.},
  author = {Johnson, C. D. and Wonham, W. M.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19670032494},
  note = {Source identifier: 19670032494}
}