- Supreme Court of Iowa | Wednesday, January 17, 1973 | Cited 0 times
- Nebraska Supreme Court | Friday, April 12, 1991 | Cited 0 times
- Court of Appeals for the Eighth Circuit | Tuesday, February 7, 1978 | Cited 0 times
- Nebraska Supreme Court | Friday, March 26, 1982 | Cited 0 times
- Nebraska Supreme Court | Friday, March 10, 1995 | Cited 0 times