- Nebraska Supreme Court | Friday, September 25, 1992 | Cited 0 times
- Supreme Court of the United States | Wednesday, March 20, 1985 | Cited 0 times
- Supreme Court of the United States | Monday, June 11, 1990 | Cited 0 times
- Supreme Court of the United States | Monday, June 20, 1983 | Cited 0 times