- Supreme Court of Minnesota | Friday, July 15, 1988 | Cited 0 times
- Supreme Court of the United States | Monday, June 22, 1981 | Cited 0 times
- Supreme Court of the United States | Wednesday, June 15, 1988 | Cited 0 times
- Supreme Court of the United States | Thursday, June 22, 1972 | Cited 0 times