TY - GEN AU - Erica Kuligowski AU - Amanda Kimball C2 - Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD DA - 2018-08-16 DO - https://doi.org/10.6028/NIST.TN.2008 LA - en PB - Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD PY - 2018 TI - Alerting under Imminent Threat: Guidance on alerts issued by outdoor siren and short message alerting systems ER -