- Supreme Court of the United States | Thursday, June 29, 1972 | Cited 0 times
- Supreme Court of the United States | Wednesday, June 25, 1986 | Cited 0 times
- Illinois Supreme Court | Friday, January 30, 1987 | Cited 0 times
- Supreme Court of the United States | Thursday, June 29, 1972 | Cited 0 times
- Supreme Court of the United States | Monday, May 15, 1989 | Cited 0 times
- District Court, N.D. Illinois | Tuesday, October 2, 1990 | Cited 0 times