{"id":"001063799","type":"book","title":"Strong Rulers - Weak Economy? Rome, the Carolingians and the Archeology of Slavery in the First Millenium AD","publisher":"Ashgate","publisher-place":"Hampshire","pages":"33-53","container-title":"The long morning of medieval Europe : New directions in early medieval studies","author":[{"family":"Henning","given":"Joachim"}],"issued":{"raw":"2008"}}