- Court of Appeals for the Eighth Circuit | Friday, February 6, 1981 | Cited 0 times
- Court of Appeals for the Eighth Circuit | Thursday, November 18, 1982 | Cited 0 times
- Court of Appeals of Iowa | Tuesday, November 26, 1991 | Cited 0 times
- Supreme Court of Iowa | Wednesday, October 27, 1982 | Cited 0 times
- Supreme Court of Iowa | Wednesday, June 17, 1987 | Cited 0 times
- Supreme Court of Iowa | Wednesday, April 18, 1990 | Cited 0 times