@misc{indiciae91f572acc588,
  title = {An Optimal Orthogonal Decomposition Method for Kalman Filter-Based Turbofan Engine Thrust Estimation},
  author = {Litt, Jonathan S.},
  year = {2007},
  url = {https://ntrs.nasa.gov/citations/20080047455},
  note = {Source identifier: 20080047455}
}