Bethenergy Mines, Inc. v. Workmen's Compensation Appeal Board , 132 Pa. Commw. 288 ( 1990 )
Muse v. Workmen's Compensation Appeal Board , 514 Pa. 1 ( 1987 )
Devore v. Workmen's Compensation Appeal Board , 165 Pa. Commw. 615 ( 1994 )