- Supreme Court of the United States | Wednesday, March 20, 1991 | Cited 0 times
- Supreme Court of Minnesota | Friday, April 19, 1968 | Cited 0 times
- Court of Appeals of Minnesota | Tuesday, July 21, 1987 | Cited 0 times
- District Court, D. Minnesota | Wednesday, June 26, 1991 | Cited 0 times