- Supreme Court of the United States | Thursday, June 16, 1977 | Cited 0 times
- Supreme Court of the United States | Wednesday, December 6, 1972 | Cited 0 times
- Court of Appeals for the Eighth Circuit | Wednesday, March 25, 1981 | Cited 0 times
- Supreme Court of Minnesota | Friday, July 30, 1976 | Cited 0 times
- Supreme Court of Minnesota | Wednesday, May 19, 1982 | Cited 0 times