{"id":"001023213","type":"book","title":"Provenance study of Iron Age amber from Bulgaria","publisher":"Archaeopress","publisher-place":"Oxford","pages":"757-760","container-title":"Archaeometry 98 (2). Proceedings of the 31st Symposium Budapest, April 26-May 3,1998. 2","author":[{"family":"Kuleff","given":"I."}],"issued":{"raw":"2002"}}