- Supreme Court of Minnesota | Friday, October 15, 1971 | Cited 0 times
- Court of Appeals of Minnesota | Tuesday, February 7, 1989 | Cited 0 times
- Supreme Court of the United States | Monday, December 16, 1985 | Cited 0 times
- Supreme Court of the United States | Tuesday, December 10, 1985 | Cited 0 times