@misc{indiciae8e66a6ce83b0,
  title = {Observations by the Halley multicolor camera},
  author = {Keller, H. U. and Arpigny, C. and Barbieri, C. and Bonnet, R. M. and Cazes, S. and Coradini, M. and Cosmovici, C. B. and Curdt, W. and Delamere, W. A. and Huebner, W. F.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19870016531},
  note = {Source identifier: 19870016531}
}