- United States Tax Court | Friday, March 31, 1961 | Cited 0 times
- Nebraska Supreme Court | Friday, August 25, 2000 | Cited 0 times
- Court of Appeals for the Seventh Circuit | Tuesday, July 12, 1983 | Cited 0 times
- Court of Appeals for the Third Circuit | Monday, February 25, 2013 | Cited 0 times