@misc{indiciaef2a942e1b40d,
  title = {Linear Covariance Analysis and Epoch State Estimators},
  author = {Markley, F. Landis and Carpenter, J. Russell},
  year = {2014},
  url = {https://ntrs.nasa.gov/citations/20160009227},
  note = {Source identifier: 20160009227}
}