- Supreme Court of the United States | Monday, November 23, 1970 | Cited 0 times
- Court of Appeals for the Seventh Circuit | Monday, February 9, 1998 | Cited 0 times
- Court of Appeals for the Seventh Circuit | Wednesday, January 23, 2008 | Cited 0 times
- Supreme Court of the United States | Monday, December 20, 1971 | Cited 0 times