{"id":"000993194","type":"book","title":"Techniques of die-engraving: some reflexions on obols of the Arcadian League in the 3rd century BC","publisher":"The Royal Numismatic Society","publisher-place":"London","pages":"20-25","container-title":"Metallurgy im numismatics : 3","author":[{"family":"Gerin","given":"Dominique"}],"issued":{"raw":"1993"}}