- Supreme Court of Iowa | Wednesday, September 23, 1987 | Cited 0 times
- United States Tax Court | Monday, September 14, 1987 | Cited 0 times
- Appellate Court of Illinois | Wednesday, October 16, 2019 | Cited 0 times
- Court of Appeals for the Eighth Circuit | Thursday, September 15, 1988 | Cited 0 times
- United States Tax Court | Wednesday, December 27, 1989 | Cited 0 times
- United States Tax Court | Thursday, May 26, 1988 | Cited 0 times
- United States Tax Court | Thursday, March 30, 1989 | Cited 0 times