{"id":"001531074","type":"article","title":"Ultro Citroque Discurrere - operational patterns and tactics of Late Roman frontier fleets on rivers","publisher":"Archaeopress Publishing Ltd.","publisher-place":"Oxford","pages":"674-678","container-title":"Roman frontier studies 2009: proceedings of the XXI International Congress of Roman Frontier Studies (Limes Congress) held at Newcastle-upon-Tyne in August 2009","author":[{"family":"Himmler","given":"Florian"}],"issued":{"raw":"2017"}}