- Supreme Court of the United States | Monday, August 11, 1980 | Cited 0 times
- Supreme Court of the United States | Thursday, June 17, 1976 | Cited 0 times
- Illinois Supreme Court | Friday, June 8, 1979 | Cited 0 times
- Appellate Court of Illinois | Thursday, July 23, 1981 | Cited 0 times