{"id":"001059747","type":"book","title":"Rome in the ninth century: the economic system","publisher":"de Gruyter","publisher-place":"Berlin/New York","pages":"105-122","container-title":"Post-Roman towns, trade and settlement in Europe and Byzantium : 1. The heirs of the Roman West","author":[{"family":"Delogu","given":"Paolo"}],"issued":{"raw":"2007"}}