{"id":"003008245","type":"book","title":"Local and Interregional Exchanges in the Lower Po Valley, Eighth-Ninth Centuries","publisher":"Dumbarton Oaks Research Library and Collection","publisher-place":"Washington, D.C","pages":"219-233","container-title":"Trade and markets in Byzantium","author":[{"family":"Gelichi","given":"Sauro"}],"issued":{"raw":"2012"}}