North Carolina v. Pearce , 89 S. Ct. 2072 ( 1969 )
Commonwealth v. Ward , 493 Pa. 115 ( 1981 )
Davis v. State , 308 So. 2d 27 ( 1975 )
Johnny R. Martinez v. W. J. Estelle, Jr., Director, Texas Department of Corrections , 527 F.2d 1330 ( 1976 )