R. Collin Mangrum, The Falling Star of Free Exercise: Free Exercise and Substantive Due Process Entitlement Claims in City of Boerne v. Flores, 31 Creighton L. Rev. 693 (1998).

Richard Collin Mangrum, Challenging the Scope of Free Exercise, Newsl. (Ctr. for the Study of Religion & Soc'y), Spring 1998.