- United States Tax Court | Monday, October 5, 1998 | Cited 0 times
- Court of Appeals for the Seventh Circuit | Monday, July 10, 1972 | Cited 0 times
- United States Tax Court | Thursday, May 21, 1998 | Cited 0 times
- United States Tax Court | Thursday, March 23, 2006 | Cited 0 times