@misc{indiciae40f7082072cf,
  title = {Storage and computationally efficient permutations of factorized covariance and square-root information arrays},
  author = {Muellerschoen, R. J.},
  year = {1988},
  url = {https://ntrs.nasa.gov/citations/19890000835},
  note = {Source identifier: 19890000835}
}