- Supreme Court of Minnesota | Friday, December 5, 1969 | Cited 0 times
- Supreme Court of Minnesota | Friday, January 3, 1969 | Cited 0 times
- Nebraska Supreme Court | Friday, March 27, 1970 | Cited 0 times
- Supreme Court of the United States | Monday, June 7, 1965 | Cited 0 times
- Supreme Court of the United States | Monday, June 13, 1966 | Cited 0 times
- Supreme Court of the United States | Monday, March 27, 1967 | Cited 0 times
- Supreme Court of the United States | Monday, April 8, 1968 | Cited 0 times