Vile, John R. (2009). "Adler v. Board of Education (1952)". The First Amendment Encyclopedia presented by the John Seigenthaler Chair of Excellence in First Amendment Studies. Archived from the original on August 28, 2023. Retrieved August 28, 2023.
Wermiel, Stephen (2009). "Keyishian v. Board of Regents (1967)". The First Amendment Encyclopedia presented by the John Seigenthaler Chair of Excellence in First Amendment Studies. Archived from the original on August 28, 2023. Retrieved August 28, 2023.
Vile, John R. (2009). "Adler v. Board of Education (1952)". The First Amendment Encyclopedia presented by the John Seigenthaler Chair of Excellence in First Amendment Studies. Archived from the original on August 28, 2023. Retrieved August 28, 2023.
Wermiel, Stephen (2009). "Keyishian v. Board of Regents (1967)". The First Amendment Encyclopedia presented by the John Seigenthaler Chair of Excellence in First Amendment Studies. Archived from the original on August 28, 2023. Retrieved August 28, 2023.