@misc{indiciaef9ea266dfea1,
  title = {A Stabilized Sparse-Matrix U-D Square-Root Implementation of a Large-State Extended Kalman Filter},
  author = {Boggs, D. and Ghil, M. and Keppenne, C.},
  year = {1995},
  url = {https://ntrs.nasa.gov/citations/20060037009},
  note = {Source identifier: 20060037009}
}