{"id":"001067127","type":"book","title":"About the function of stone hammer-axes from the Chalcolithic period in Bulgaria","publisher":"Avalon","publisher-place":"Sofija","pages":"237-243","container-title":"Saxa loquuntur. Sbornik c čest na 65-godišinata na Nikolaj Sirakov","author":[{"family":"Boyadziev","given":"Kamen"}],"issued":{"raw":"2009"}}