1. Organic Geochemistry Unit, School of Chemistry, Bristol BS8 1TS, United Kingdom
2. Bristol Radiocarbon Accelerator Mass Spectrometry Facility, University of Bristol, Bristol BS8 1UU, United Kingdom
3. Scientific Dating, Historic England, Cannon Bridge House, London EC4R 2YA, United Kingdom
4. Department of Cultures/Archaeology, University of Helsinki 00014 Helsinki, Finland
5. Institute of Archaeology and Ethnology, University of Gdańsk PL 80-851 Gdańsk, Poland
6. LVR-State Service for Archaeological Heritage 53115 Bonn, Germany
7. Dobó István Castle Museum, Eger H-3300, Hungary
8. UMR 8215 Trajectoires, Université Paris 1 Panthéon-Sorbonne, 75004 Paris, France
9. UMR 7044/Institut National des Recherches Archéologiques Préventives, University of Strasbourg, 67100 Strasbourg, France
10. UMR 7044, Misha, University of Strasbourg, 67083 Strasbourg, France
11. Institute of Archaeology, Adam Mickiewicz University 61-614 Poznan, Poland
12. Archaeological Research Leiden, Leiden University, Leiden 2333 CC, The Netherlands