- Supreme Court of Iowa | Wednesday, February 22, 1989 | Cited 0 times
- District Court, S.D. Iowa | Friday, June 21, 1996 | Cited 0 times
- Court of Appeals for the Eighth Circuit | Wednesday, August 13, 1997 | Cited 0 times
- Court of Appeals for the Eighth Circuit | Friday, June 13, 1997 | Cited 0 times
- Supreme Court of the United States | Wednesday, January 12, 2000 | Cited 0 times