@misc{indiciaea846e96b507e,
  title = {A digital imaging photometry system for cometary data acquisition},
  author = {Clifton, K. S. and Benson, C. M. and Gary, G. A.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19860022901},
  note = {Source identifier: 19860022901}
}