- United States Tax Court | Monday, September 27, 1971 | Cited 0 times
- Court of Appeals for the Seventh Circuit | Tuesday, April 27, 1971 | Cited 0 times
- United States Tax Court | Monday, September 29, 1986 | Cited 0 times
- United States Tax Court | Thursday, December 27, 1973 | Cited 0 times
- United States Tax Court | Thursday, September 11, 1997 | Cited 0 times