- Supreme Court of the United States | Tuesday, April 15, 1980 | Cited 0 times
- Supreme Court of the United States | Wednesday, June 7, 1972 | Cited 0 times
- Supreme Court of Iowa | Wednesday, April 15, 1981 | Cited 0 times
- California Court of Appeal | Tuesday, July 24, 1979 | Cited 0 times