- Commonwealth Court of Pennsylvania | Monday, July 28, 1986 | Cited 0 times
- Court of Appeals of Maryland | Thursday, February 3, 1972 | Cited 0 times
- Commonwealth Court of Pennsylvania | Thursday, March 19, 1992 | Cited 0 times
- Court of Appeals for the Third Circuit | Wednesday, January 27, 1971 | Cited 0 times
- Supreme Court of Pennsylvania | Monday, June 5, 1978 | Cited 0 times