@misc{indiciae6559ec991eed,
  title = {Orbit determination and prediction, and computer programs},
  author = {A. J. Claus and R. B. Blackman and E. G. Halline and W. G. Ridgway, III},
  year = {1963},
  url = {https://ntrs.nasa.gov/citations/19640000981},
  note = {Source identifier: 19640000981}
}