{"id":"001377467","type":"article","title":"Opercula, los tapones de ánfora: un indicador económico controvertido","publisher":"Verlag des Geschichtsvereines für Kärnten","publisher-place":"Klagenfurt","pages":"223-239","container-title":"Instrumenta Inscripta Latina","author":[{"family":"Mayer","given":"Marc"}],"issued":{"raw":"2008"}}