- Supreme Court of the United States | Wednesday, January 21, 1981 | Cited 0 times
- Supreme Court of the United States | Tuesday, July 2, 1985 | Cited 0 times
- Supreme Court of the United States | Monday, June 8, 1987 | Cited 0 times
- Court of Appeals for the Eighth Circuit | Wednesday, February 11, 1981 | Cited 0 times
- Court of Appeals for the Third Circuit | Thursday, May 30, 1991 | Cited 0 times