@misc{indiciaeefe5f4910930,
  title = {Cometary Astrometry},
  author = {Yeomans, D. K. and West, R. M. and Harrington, R. S. and Marsden, B. G.},
  year = {1984},
  url = {https://ntrs.nasa.gov/citations/19850016704},
  note = {Source identifier: 19850016704}
}