1. Beirut explosion: What we know so far. BBC News,2020
2. Preliminary yield estimation of the 2020 Beirut explosion using video footage from social media;Rigby;Shock Waves,2020
3. Nashville bombing: What we know about downtown explosion on Christmas morning. The Tennessean;The Tennessean Staff,2020
4. What we know so far: A timeline of security response at the capitol on Jan. 6. NPR;Wamsley,2021
5. D.L. Upp, R.M. Keyser, Performance of a car-mounted neutron and gamma-ray monitoring system for illicit material detection, in: Proc. 45th INMM Annual Meeting Institute of Nuclear Materials Management, 2004.