- Illinois Supreme Court | Wednesday, May 29, 1968 | Cited 0 times
- Supreme Court of the United States | Monday, June 13, 1966 | Cited 0 times
- Supreme Court of the United States | Monday, May 4, 1970 | Cited 0 times
- Supreme Court of the United States | Monday, May 4, 1970 | Cited 0 times
- Supreme Court of the United States | Monday, June 22, 1970 | Cited 0 times