Caspers CM. How the sacrament left the church building. Theophoric processions as a constituent of the feast of Corpus Christi. In: Post PGJ, Rouwhorst G, van Tongeren L, Scheer A, editors. Christian Feast and Festival. The Dynamics of Western Liturgy and Culture. Vol 12. Leuven: Peeters; 2001. p. 383-403. (Liturgia Condenda; vol 12).