@misc{indiciae5f8a56377b4c,
  title = {The physics of comets},
  author = {Mendis, D. A. and Houpis, H. L. F. and Marconi, M. L.},
  year = {1985},
  url = {https://ntrs.nasa.gov/citations/19850044624},
  note = {Source identifier: 19850044624}
}