@misc{indiciae0d6f34a7a3af,
  title = {Finite-state machines as elements in control systems.},
  author = {Burgin, G. H. and Walsh, M. J.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19720029498},
  note = {Source identifier: 19720029498}
}