Symbolism and the Interaction of the Real and the Ideal: Scenery in Early-Modern Netherlandish Graphic Art. In Gary Backhaus, und John Murungi (Hrsg.), Symbolic Landscapes, 251-264, Dordrecht, 2009. [PUMA: - Früh-Moderne Frühe Idal Ideal Interaction Interaktion Karten Kunst Neuzeit Real Realität Reisen Symbolism Symbolismus]
Cities of God? Medieval urban forms and their Christian symbolism. Transactions of the Institute of British Geographers, (29):296-313, 2004. [PUMA: Christian Cities Formen God Gott Herrschaft Kartographie Städte Symbolik christlich symbolism urbane]