@misc{indiciae5d917ca3f696,
  title = {Retention of an atmosphere on early Mars},
  author = {M. H. Carr},
  year = {1999},
  doi = {10.1029/1999je001048},
  url = {https://pubs.usgs.gov/publication/70021179},
  note = {Source identifier: 70021179}
}