Lubbock Civil Liberties Union v. Lubbock Independent School District , 669 F.2d 1038 ( 1982 )
Everson v. Board of Ed. of Ewing , 330 U.S. 1 ( 1947 )
Lemon v. Kurtzman , 91 S. Ct. 2105 ( 1971 )
Clark v. Dallas Independent School District , 671 F. Supp. 1119 ( 1987 )