- Supreme Court of the United States | Thursday, February 22, 1979 | Cited 0 times
- Nebraska Supreme Court | Friday, September 4, 1992 | Cited 0 times
- Supreme Court of the United States | Monday, June 8, 1992 | Cited 0 times
- Supreme Court of the United States | Thursday, September 9, 1982 | Cited 0 times