@misc{indiciae5b425df0d515,
  title = {Filtering and error analysis via the UDU super T covariance factorization},
  author = {Thornton, C. L. and Bierman, G. J.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19790028270},
  note = {Source identifier: 19790028270}
}