@misc{indiciae91b37958d429,
  title = {Volcanism and soil mercury on Mars - Consequences for terrestrial microorganisms},
  author = {Siegel, B. Z. and Siegel, S. M.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19780064761},
  note = {Source identifier: 19780064761}
}