Kachinski v. Workmen's Compensation Appeal Board , 516 Pa. 240 ( 1987 )
Joyce Western Corp. v. Workmen's Compensation Appeal Board , 518 Pa. 191 ( 1988 )
Bethenergy Mines, Inc. v. Workmen's Compensation Appeal Board , 132 Pa. Commw. 288 ( 1990 )
Kovalchick Salvage Co. v. Workmen's Compensation Appeal Board , 102 Pa. Commw. 562 ( 1986 )