- United States Tax Court | Wednesday, June 4, 1980 | Cited 0 times
- Court of Appeals for the Seventh Circuit | Wednesday, January 7, 1987 | Cited 0 times
- Court of Appeals for the Tenth Circuit | Friday, June 18, 1971 | Cited 0 times
- Court of Appeals for the Eighth Circuit | Friday, July 13, 1990 | Cited 0 times
- Supreme Court of the United States | Monday, November 6, 1933 | Cited 0 times