- Supreme Court of the United States | Thursday, February 24, 1972 | Cited 0 times
- Court of Appeals for the Eighth Circuit | Thursday, July 20, 1972 | Cited 0 times
- Court of Appeals for the Eighth Circuit | Friday, December 28, 1973 | Cited 0 times
- Nebraska Supreme Court | Friday, May 19, 1972 | Cited 0 times
- Nebraska Supreme Court | Friday, March 12, 1971 | Cited 0 times