- Supreme Court of Iowa | Wednesday, March 18, 1987 | Cited 0 times
- Supreme Court of Iowa | Monday, April 23, 1990 | Cited 0 times
- Supreme Court of the United States | Wednesday, March 20, 1991 | Cited 0 times
- Supreme Court of Iowa | Wednesday, January 18, 1984 | Cited 0 times
- Court of Appeals for the Eighth Circuit | Monday, July 30, 1984 | Cited 0 times