{"id":"001033150","type":"book","title":"Ancient riverborne transport of heavy loads","publisher":"Archaeopress","publisher-place":"Oxford","pages":"105-115","container-title":"Close encounters : Sea- and riverborne trade, ports and hinterlands, ship construction and navigation in antiquity, the middle ages and in modern time","author":[{"family":"Bockius","given":"Ronald"}],"issued":{"raw":"2004"}}