{"id":"001006909","type":"book","title":"Über Grenzen und Mauern in der Landschaft des hohen Mittelalters","publisher":"vdf Hochschulverlag","publisher-place":"Zürich","pages":"9-14","container-title":"Stadt- und Landmauern : 3. Abgrenzungen: Ausgrenzungen in der Stadt und um die Stadt","author":[{"family":"Maurer","given":"Helmut"}],"issued":{"raw":"1999"}}