{"id":"001031242","type":"book","title":"Non-utilitarian fragment of bone from the Middle Palaeolithic layer","publisher":"Państwowe Wydawnictwo Naukowe","publisher-place":"Warszawa","container-title":"Excavation in the Bacho Kiro Cave (Bulgaria) : Final report","author":[{"family":"Marshack","given":"Alexander 1918-2004"}],"issued":{"raw":"1982"}}