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.
Burns, Robert and Richard Lardner. " Retired US general says nuclear launch order can be refused." AP News. November 14, 2017. https://www.apnews.com/14eb66de62fc49b181680ccbd7394646.
Conley, Jerome M. "Nuclear Command and Control in the Twenty-First Century: Trends, Disparities, and the Impact on Stability." In Debating 21st Century Nuclear Issues, edited by Owen Price and Jenifer Mackby, 226-250. Washington, D.C.: Center for International and Strategic Studies, 2007. https://www.csis.org/analysis/debating-21st-century-nuclear-issues.
Demirjian, Karoun. "Trump’s nuclear authority divides senators alarmed by his ‘volatile’ behavior." Washington Post, November 14, 2017. https://www.washingtonpost.com/powerpost/senators-deadlock-in-debate-over-whether-to-restrain-trumps-nuclear-launch-authority/2017/11/14/491a994a-c95b-11e7-8321-481fd63f174d_story.html?utm_term=.5eecae311b16.
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.
Lamothe, Dan. "If Trump wants a nuclear attack against North Korea, his military advisers have few other options." Washington Post. August 10, 2017. https://www.washingtonpost.com/news/checkpoint/wp/2017/08/10/if-trump-wants-a-nuclear-attack-against-north-korea-his-military-advisers-have-few-other-options/?utm_term=.924fe6b2f5e5#comments.
Lewis, Patricia, Heather Williams, Benoît Pelopidas and Sasan Aghlani. Too Close for Comfort: Cases of Near Nuclear Use and Options for Policy. London: Chatham House, 2014. https://www.chathamhouse.org/sites/default/files/field/field_document/20140428TooCloseforComfortNuclearUseLewisWilliamsPelopidasAghlani.pdf.