@misc{indiciaec3dd86865fe0,
  title = {Monochromatic brightness variations of comets. II - Core-mantle model},
  author = {Mendis, D. A. and Brin, G. D.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780052633},
  note = {Source identifier: 19780052633}
}