{"id":"001028802","type":"book","title":"Vorschriftliche Zeichen aus dem Frühchalkolithikum in Westbulgarien","publisher":"Hedges","publisher-place":"Oxford","pages":"113-118","container-title":"Early symbolic systems for communication in Southeast Europe","author":[{"family":"Čochadžiev","given":"Stefan."}],"issued":{"raw":"2003"}}