- Supreme Court of Iowa | Wednesday, May 11, 1988 | Cited 0 times
- Supreme Court of the United States | Wednesday, March 27, 1991 | Cited 0 times
- Supreme Court of the United States | Monday, June 10, 2002 | Cited 0 times
- Supreme Court of the United States | Monday, May 21, 2007 | Cited 0 times
- Supreme Court of the United States | Monday, May 18, 2009 | Cited 0 times
- District Court, W.D. Wisconsin | Friday, December 28, 1990 | Cited 0 times