Walls, Ramparts, and Lines of Demarcation: Selected Studies from Antiquity to Modern Times (The Shape of War)Natalie Fryde, Dirk Reitz · First published 2009Open the Tome
Die Deutung der mittelalterlichen Gesellschaft in der Moderne =Natalie Fryde · First published 2006Open the Tome
Die englischen Könige im MittelalterNatalie Fryde, Hanna Vollrath · First published 2004Open the Tome
