- Court of Appeals of Wisconsin | Thursday, February 8, 1996 | Cited 0 times
- United States Tax Court | Monday, June 16, 1997 | Cited 0 times
- United States Tax Court | Monday, October 25, 1999 | Cited 0 times
- United States Tax Court | Wednesday, January 28, 2009 | Cited 0 times
- United States Tax Court | Wednesday, January 28, 2009 | Cited 0 times