@misc{indiciaef32b8ba54d5b,
  title = {Geothermal hazards - Mercury emission},
  author = {Siegel, S. M. and Siegel, B. Z.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19750063157},
  note = {Source identifier: 19750063157}
}