- Supreme Court of the United States | Monday, May 25, 1970 | Cited 0 times
- Supreme Court of the United States | Monday, January 20, 1969 | Cited 0 times
- Supreme Court of Minnesota | Tuesday, June 30, 1970 | Cited 0 times
- Supreme Court of the United States | Thursday, June 22, 1972 | Cited 0 times