Trop v. Dulles , 78 S. Ct. 590 ( 1958 )
Rhodes v. Chapman , 101 S. Ct. 2392 ( 1981 )
Estelle v. Gamble , 97 S. Ct. 285 ( 1976 )
Thompson v. Oklahoma , 108 S. Ct. 2687 ( 1988 )
Helling v. McKinney , 113 S. Ct. 2475 ( 1993 )