- Commonwealth Court of Pennsylvania | Friday, June 9, 1989 | Cited 0 times
- Supreme Court of the United States | Monday, May 18, 1981 | Cited 0 times
- Commonwealth Court of Pennsylvania | Friday, April 15, 1988 | Cited 0 times
- Supreme Court of the United States | Tuesday, June 6, 1978 | Cited 0 times