@misc{indiciaebf4daca21ba4,
  title = {Numerical comparison of Kalman filter algorithms - Orbit determination case study},
  author = {Bierman, G. J. and Thornton, C. L.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770045008},
  note = {Source identifier: 19770045008}
}