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"25th Constitutional Amendment". The Great Society Congress. Association of Centers for the Study of Congress. Archived from the original on April 20, 2016. Retrieved April 6, 2016.
Schlimgen, Joan (January 23, 2012). "Woodrow Wilson – Strokes and Denial". Arizona Health Sciences Library. Archived from the original on July 3, 2013. Retrieved September 27, 2015.
Kalt, Brian C.; Pozen, David. "The Twenty-fifth Amendment". The Interactive Constitution. Philadelphia, PA: The National Constitution Center. Archived from the original on September 4, 2019. Retrieved July 20, 2018.
"25th Constitutional Amendment". The Great Society Congress. Association of Centers for the Study of Congress. Archived from the original on April 20, 2016. Retrieved April 6, 2016.
Kalt, Brian C. (2012). Constitutional cliffhangers: a legal guide for presidents and their enemies. New Haven, CN: Yale University Press. ISBN978-0-300-12351-7. OCLC842262440.