- United States Tax Court | Monday, November 8, 1971 | Cited 0 times
- District Court, N.D. Texas | Friday, November 20, 1998 | Cited 0 times
- Court of Appeals for the Tenth Circuit | Thursday, January 21, 1971 | Cited 0 times
- United States Tax Court | Tuesday, March 18, 1975 | Cited 0 times
- United States Tax Court | Tuesday, September 7, 1993 | Cited 0 times
- Court of Appeals for the Ninth Circuit | Thursday, February 5, 1970 | Cited 0 times