1. Institut für Planetologie Westfälische Wilhelms‐Universität Münster Wilhelm‐Klemm Str. 10 Münster D‐48149 Germany
2. CNRS IRD, Ifremer, LEMAR University of Brest Plouzané F‐29280 France
3. Institut Universitaire de France Paris 75005 France
4. German Fireball Network Lilienstraße 3 Augsburg D‐86156 Germany
5. University of Arizona AMS Laboratory 1118 East Fourth St Tucson Arizona 85721 USA
6. Isotope Climatology and Environmental Research Centre (ICER) Institute for Nuclear Research Hungarian Academy of Sciences Bem ter 18/c Debrecen 4026 Hungary
7. Helmholtz‐Zentrum Dresden‐Rossendorf Bautzner Landstr. 400 Dresden D‐01328 Germany
8. Faculty of Physics Isotope Physics VERA Laboratory University of Vienna Währinger Str. 17 Vienna 1090 Austria
9. Geowissenschaftliches Zentrum Universität Göttingen Goldschmidtstr. 1 Göttingen D‐37077 Germany