{"id":"001031387","type":"book","title":"Ausgrabungen in der Alten Nikolaikirche am Frankfurter Römerberg","publisher":"Habelt","publisher-place":"Bonn","pages":"61-81","container-title":"Frankfurter Beiträge zur Mittelalter- Archäologie : 2","author":[{"family":"Mathias","given":"Michael"}],"issued":{"raw":"1990"}}