{"id":"001531079","type":"article","title":"The frontier fleets: what were they and what did they do?","publisher":"Archaeopress Publishing Ltd.","publisher-place":"Oxford","pages":"687-690","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":"Rankov","given":"N. B."}],"issued":{"raw":"2017"}}