- Supreme Court of Iowa | Wednesday, July 25, 1979 | Cited 0 times
- Supreme Court of Minnesota | Friday, April 27, 1979 | Cited 0 times
- New York Court of Appeals | Wednesday, February 19, 1986 | Cited 0 times
- Washington Supreme Court | Thursday, January 9, 1975 | Cited 0 times
- Supreme Court of Minnesota | Friday, May 19, 1972 | Cited 0 times