1. Askins v. United States, 251 F.2d 909 (D.C.C. 1958).
2. Ben Veniste, Richard and George Plimpton, Stonewall: The True Story of the Watergate Prosecution (New York: Simmon & Schuster, 1977).
3. Berger, Raoul, Impeachment: The Constitutional Problems (Cambridge, MA: Harvard University Press, 1973).
4. Berger, Raoul, “The President, Congress and the Courts,” Yale Law Journal (1974), Volume 83.
5. Bickel, Alexander, “The Constitutional Tangle,” The New Republic (October 6, 1973).