The resources below are books, articles, and other media that are useful references for aspects of this topic. When they are complete, each reference will be described and tagged. See here for an example of a more or less complete entry.
Eatinger, Robert. "Riddles of Armageddon: Legal Enigmas of a Nuke Launch Order." The Cipher Brief. January 23, 2018. https://www.thecipherbrief.com/riddles-armageddon-legal-enigmas-nuke-launch-order.
Wellerstein, Alex and Avner Cohen. "If Trump wants to use nuclear weapons, whether it’s ‘legal’ won’t matter." Washington Post, November 22, 2017. https://www.washingtonpost.com/news/posteverything/wp/2017/11/22/if-trump-wants-to-use-nuclear-weapons-whether-its-legal-wont-matter/?utm_term=.b893af9d38d5.