- Supreme Court of the United States | Monday, June 26, 1978 | Cited 0 times
- Supreme Court of Minnesota | Friday, July 21, 1972 | Cited 0 times
- Supreme Court of Minnesota | Friday, October 1, 1971 | Cited 0 times
- Court of Appeals for the Eighth Circuit | Friday, April 2, 1965 | Cited 0 times