- Supreme Court of Iowa | Wednesday, December 24, 1997 | Cited 0 times
- Court of Appeals for the Eighth Circuit | Thursday, June 22, 1995 | Cited 0 times
- Court of Appeals of Iowa | Wednesday, March 27, 1996 | Cited 0 times
- Supreme Court of the United States | Monday, December 5, 1977 | Cited 0 times
- Supreme Court of the United States | Tuesday, April 17, 1984 | Cited 0 times