{"id":"001009865","type":"book","title":"On the validity of archaeological radiocarbon dates beyond 30,000 years BP","publisher-place":"Paris","pages":"137-141","container-title":"14C et archéologie. 3ème Congrès International. Lyon, 6-10 avril 1998","author":[{"family":"Hedges","given":"Robert"}],"issued":{"raw":"1999"}}