- Supreme Court of Iowa | Wednesday, February 22, 1978 | Cited 0 times
- Supreme Court of Iowa | Wednesday, April 23, 1980 | Cited 0 times
- Court of Appeals for the Eighth Circuit | Thursday, February 23, 1989 | Cited 0 times
- Supreme Court of Iowa | Wednesday, February 16, 2000 | Cited 0 times