1. Institute of Chemistry, University of Tartu, Ravila 14 a, 50411 Tartu, Estonia
2. Institute of History and Archaeology, University of Tartu, Jakobi 2, 51005 Tartu, Estonia
3. Swedish Collegium for Advanced Study (SCAS), Linneanum, Thunbergsvägen 2, 75238 Uppsala, Sweden
4. Department of Geology, Tallinn University of Technology, Ehitajate Tee 5, 19086 Tallinn, Estonia
5. Archaeological Research Collection, Tallinn University, Rüütli 10, 10130 Tallinn, Estonia
6. BioArCh, Department of Archaeology, University of York, Environment Building, Wentworth Way, YO10 5DD York, UK
7. Institute for Archaeological Sciences, Department of Geosciences, University of Tübingen, Rümelinstrasse 23, 72070 Tübingen, Germany
8. School of Humanities, Division of History, Tallinn University, Narva rd 25, 10120 Tallinn, Estonia
9. Institute of Latvian History, University of Latvia, Kalpaka blvd 4, LV-1050 Riga, Latvia
10. Department of Anthropology and Archaeology, University of Bristol, 43 Woodland Road, BS8 1UU Bristol, UK
11. Department of Cultures, University of Helsinki, Unioninkatu 38, 00014 Helsinki, Finland
12. Organic Geochemistry Unit, School of Chemistry, University of Bristol, BS8 1TS Bristol, UK
13. Institute of Archaeology, University of Gdańsk, ul. Bielańska 5, 80-851 Gdańsk, Poland
14. Helsinki Collegium for Advanced Studies, University of Helsinki, Fabianinkatu 24, 00014 Helsinki, Finland
15. Department of Scientific Research, The British Museum, WC1B 3DG London, UK