{"id":"001191748","type":"book","title":"Zur Sozialgeschichte der Ostgrenze Estlands im Mittelalter","publisher":"Herder-Institut","pages":"520-543","container-title":"Zeitschrift für Ostmitteleuropa-Forschung, 47,4 (1998","author":[{"family":"Selart","given":"Anti"}],"issued":{"raw":"1998"}}