- United States Tax Court | Thursday, July 2, 1970 | Cited 0 times
- Court of Appeals for the Seventh Circuit | Wednesday, September 9, 1970 | Cited 0 times
- Court of Appeals for the Seventh Circuit | Tuesday, September 28, 1971 | Cited 0 times
- Court of Appeals for the Second Circuit | Tuesday, October 12, 1971 | Cited 0 times
- Court of Appeals for the Seventh Circuit | Tuesday, October 17, 1972 | Cited 0 times