- Supreme Court of the United States | Friday, June 23, 1989 | Cited 0 times
- Court of Appeals for the Seventh Circuit | Monday, April 2, 2007 | Cited 0 times
- Court of Appeals for the Eighth Circuit | Tuesday, July 17, 2007 | Cited 0 times
- Nebraska Supreme Court | Friday, November 21, 2003 | Cited 0 times
- Supreme Court of the United States | Monday, June 1, 1987 | Cited 0 times
- Court of Appeals for the Fifth Circuit | Friday, September 17, 1999 | Cited 0 times