@misc{indiciae9d9f14725b05,
  title = {An adaptive observer for single-input single-output linear systems.},
  author = {Carroll, R. L. and Lindorff, D. P.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19730059016},
  note = {Source identifier: 19730059016}
}