@misc{indiciaeaee71c4fc8cb,
  title = {Climatic change on Mars and Earth},
  author = {Toon, O. B. and Sagan, C. and Gierasch, P. J. and Pollack, J. B.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19760012665},
  note = {Source identifier: 19760012665}
}