- Supreme Court of Oklahoma | Tuesday, April 19, 1988 | Cited 0 times
- Court of Appeals of Iowa | Wednesday, September 24, 1997 | Cited 0 times
- Court of Appeals of Iowa | Wednesday, February 25, 1998 | Cited 0 times
- Colorado Court of Appeals | Thursday, April 20, 1995 | Cited 0 times
- Supreme Court of Iowa | Wednesday, July 27, 1994 | Cited 0 times