1. University of Oxford, Oxford, UK.
2. Natural Environment Research Council Radiocarbon Facility, Scottish Universities Environmental Research Centre, East Kilbride, UK.
3. Nagoya University, Nagoya, Japan.
4. University of Groningen, Groningen, Netherlands.
5. University of Leiden, Leiden, Netherlands.
6. GeoForschungsZentrum German Research Centre for Geosciences, Potsdam, Germany.
7. Aberystwyth University, Aberystwyth, UK.
8. University of Newcastle, Newcastle upon Tyne, UK.
9. Free University Berlin, Berlin, Germany.
10. Osaka City University, Osaka, Japan.
11. Chiba University of Commerce, Chiba, Japan.
12. Naruto University of Education, Naruto, Japan.
13. University of Tokyo, Tokyo, Japan.