- North Dakota Supreme Court | Monday, October 6, 1980 | Cited 0 times
- Supreme Court of Iowa | Wednesday, March 23, 1994 | Cited 0 times
- Idaho Supreme Court | Friday, January 10, 1992 | Cited 0 times
- Colorado Court of Appeals | Thursday, June 2, 1994 | Cited 0 times
- Supreme Court of Iowa | Wednesday, September 23, 1981 | Cited 0 times
- Supreme Court of Iowa | Wednesday, April 26, 1995 | Cited 0 times