Commonwealth v. Davis , 499 Pa. 282 ( 1982 )
Commonwealth v. Cook , 230 Pa. Super. 283 ( 1974 )
Rose v. Lundy , 102 S. Ct. 1198 ( 1982 )
Picard v. Connor , 92 S. Ct. 509 ( 1971 )
Granberry v. Greer , 107 S. Ct. 1671 ( 1987 )