Rezension zu: Felipe Fernández-Armesto, James Muldoon (ed.), The Medieval Frontiers of Latin Christendom. Expansion, Contraction, Continuity, Aldershot, Hampshire (Ashgate Publishing) 2008, XXXII–386 S. (The Expansion of Latin Europe, 1000–1500, 1), ISBN 978-0-7546-5973-0, GBP 80,00