https://www.wikihow.com/Survive-a-Nuclear-Attack
https://www.ready.gov/nuclear-blast
http://www.businessinsider.com/nuclear-explosion-fallout-radiation-survival-shelter-2017-3
http://www.atomicarchive.com/Effects/effects2.shtml
https://www.express.co.uk/news/world/840551/How-to-survive-a-nuclear-attack-what-do-bomb-North-Korea-missile-surviving-blast
https://en.wikipedia.org/wiki/Nuclear_fallout