{"id":"000985933","type":"book","title":"Naturrechtliche Freiheit und Leibeigenschaft","publisher-place":"Sigmaringen","pages":"335-351","container-title":"Sozialer Wandel im Mittelalter : Wahrnehmungsformen, Erklärungsmuster, Regelungsmechanismen","author":[{"family":"Töpfer","given":"Bernhard"}],"issued":{"raw":"1994"}}