- Court of Appeals for the Eighth Circuit | Friday, June 21, 1996 | Cited 0 times
- Court of Appeals for the Federal Circuit | Wednesday, September 2, 1987 | Cited 0 times
- Supreme Court of Minnesota | Friday, April 15, 1983 | Cited 0 times
- Supreme Court of Minnesota | Friday, April 23, 1982 | Cited 0 times