@misc{indiciaecdbf1ddbaa19,
  title = {On the monochromatic brightness variations of comets},
  author = {Mendis, D. A. and Brin, G. D.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19780054528},
  note = {Source identifier: 19780054528}
}