@misc{239156,
  author = {Erica Kuligowski and Amanda Kimball},
  title = {Alerting under Imminent Threat: Guidance on alerts issued by outdoor siren and short message alerting systems},
  year = {2018},
  month = {2018-08-16},
  publisher = {Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.TN.2008},
  language = {en},
}