Rogelio Gutierrez v. W. J. Estelle, Director, Texas Department of Corrections , 474 F.2d 899 ( 1973 )
Tollett v. Henderson , 93 S. Ct. 1602 ( 1973 )
Dukes v. Warden, Connecticut State Prison , 92 S. Ct. 1551 ( 1972 )