@misc{indiciaebeb2397496c3,
  title = {Terrestrial microorganisms at an altitude of 20,000 m in Earth's atmosphere},
  author = {Dale W. Griffin},
  year = {2004},
  doi = {10.1023/b:aero.0000032948.84077.12},
  url = {https://pubs.usgs.gov/publication/70026691},
  note = {Source identifier: 70026691}
}