{"id":"001020030","type":"book","title":"The structure of amber by carbon-13 nuclear magnetic resonance spectroscopy","publisher":"Institute of Archaeology, Praha","publisher-place":"Praha","pages":"28-35","container-title":"Amber in archaeology. Proceedings of the 2nd International Conference on Amber in Archaeology, Liblice 1990","author":[{"family":"Lambert","given":"Joseph B."}],"issued":{"raw":"1993"}}