@misc{indiciae7066c64e774c,
  title = {A numerical comparison of discrete Kalman filtering algorithms - An orbit determination case study},
  author = {Thornton, C. L. and Bierman, G. J.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19770028029},
  note = {Source identifier: 19770028029}
}