Mary C. Gray v. Union County Intermediate Education District, a Political Subdivision , 520 F.2d 803 ( 1975 )
Broadrick v. Oklahoma , 93 S. Ct. 2908 ( 1973 )
Independent School District No. 8 of Seiling v. Swanson , 553 P.2d 496 ( 1976 )
Tinker v. Des Moines Independent Community School District , 89 S. Ct. 733 ( 1969 )