@misc{indiciae05ee87deb546,
  title = {H2O grain size and the amount of dust in Mars' residual North polar cap},
  author = {H. H. Kieffer},
  year = {2012},
  doi = {10.1029/jb095ib02p01481},
  url = {https://pubs.usgs.gov/publication/70016320},
  note = {Source identifier: 70016320}
}