- Supreme Court of the United States | Tuesday, October 9, 1973 | Cited 0 times
- Supreme Court of Minnesota | Friday, October 28, 1955 | Cited 0 times
- Supreme Court of Iowa | Wednesday, January 21, 1976 | Cited 0 times
- Supreme Court of Minnesota | Friday, May 9, 1975 | Cited 0 times
- Supreme Court of Minnesota | Friday, May 18, 1979 | Cited 0 times
- Supreme Court of the United States | Monday, April 7, 1969 | Cited 0 times