- Illinois Supreme Court | Friday, April 18, 1980 | Cited 0 times
- Illinois Supreme Court | Wednesday, May 18, 1983 | Cited 0 times
- Illinois Supreme Court | Thursday, September 22, 1988 | Cited 0 times
- Supreme Court of the United States | Monday, October 1, 1979 | Cited 0 times
- Illinois Supreme Court | Wednesday, May 23, 1990 | Cited 0 times