@misc{indiciae9f476ca9e90b,
  title = {Effects of megascale eruptions on Earth and Mars},
  author = {T. Thordarson and M. Rampino and L. P. Keszthelyi and S. Self},
  year = {2009},
  doi = {10.1130/2009.453(04)},
  url = {https://pubs.usgs.gov/publication/70034151},
  note = {Source identifier: 70034151}
}