@misc{indiciae693a8a8e9771,
  title = {Pisgah Lava Cave communication test},
  author = {Fraeman, A. and Ellison, D. and Belov, K.},
  year = {2017},
  url = {https://ntrs.nasa.gov/citations/20210001358},
  note = {Source identifier: 20210001358}
}