- Court of Appeals for the Tenth Circuit | Thursday, May 23, 1991 | Cited 0 times
- Court of Appeals for the Seventh Circuit | Wednesday, January 11, 1984 | Cited 0 times
- United States Tax Court | Thursday, February 20, 1997 | Cited 0 times
- United States Tax Court | Monday, June 30, 1997 | Cited 0 times
- United States Tax Court | Monday, July 14, 1997 | Cited 0 times
- United States Tax Court | Wednesday, June 24, 1998 | Cited 0 times