- Nebraska Supreme Court | Friday, January 22, 1971 | Cited 0 times
- Supreme Court of Iowa | Wednesday, January 18, 1978 | Cited 0 times
- Nebraska Supreme Court | Wednesday, January 11, 1978 | Cited 0 times
- Court of Appeals for the Seventh Circuit | Tuesday, August 2, 1977 | Cited 0 times
- Nebraska Supreme Court | Tuesday, May 22, 1979 | Cited 0 times