@misc{indiciae0adbd7b86c4b,
  title = {Constrained Kalman Filtering Via Density Function Truncation for Turbofan Engine Health Estimation},
  author = {Simon, Dan and Simon, Donald L.},
  year = {2006},
  url = {https://ntrs.nasa.gov/citations/20060012173},
  note = {Source identifier: 20060012173}
}