@misc{indiciaec399e59e80c7,
  title = {Multirate and event-driven Kalman filters for helicopter flight},
  author = {Sridhar, Banavar and Smith, Phillip and Suorsa, Raymond E. and Hussien, Bassam},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19930071763},
  note = {Source identifier: 19930071763}
}