{"id":"001382238","type":"article","title":"How did Polybius Perfect Cleoxenus and Democleitus Signalling Method, 2200 Years Ago ?","publisher":"Serra","publisher-place":"Pisa","pages":"33-45","container-title":"Technai : An international journal for ancient science and technology, 4 (2013","author":[{"family":"Matricciani","given":"Emilio"}],"issued":{"raw":"2013"}}