- South Dakota Supreme Court | Friday, October 20, 1972 | Cited 0 times
- North Dakota Supreme Court | Wednesday, December 9, 1970 | Cited 0 times
- Supreme Court of Minnesota | Friday, May 21, 1971 | Cited 0 times
- Supreme Court of Minnesota | Friday, April 14, 1972 | Cited 0 times
- Supreme Court of Minnesota | Thursday, January 30, 2003 | Cited 0 times
- Supreme Court of Minnesota | Friday, July 9, 1971 | Cited 0 times