Anders v. California , 87 S. Ct. 1396 ( 1967 )
Penson v. Ohio , 109 S. Ct. 346 ( 1988 )
Stafford v. State , 813 S.W.2d 503 ( 1991 )
Porter v. Texas Department of Protective & Regulatory Services , 105 S.W.3d 52 ( 2003 )