{"id":"001022969","type":"book","title":"Ancient pine tar technology: correlations between manufacturing methods and composition","publisher":"Archaeopress","publisher-place":"Oxford","pages":"179-184","container-title":"Archaeometry 98 (1). Proceedings of the 31st Symposium Budapest, April 26-May 3,1998. 1","author":[{"family":"Beck","given":"C. W."}],"issued":{"raw":"2002"}}