1. Institute
of Physics, University of Bonn, Nussallee 12, 53115
Bonn, Germany
2. Canadian Light Source Inc., University of Saskatchewan, 101 Perimeter Road, Saskatoon, S7N0X4, Canada
3. Strem Chemicals GmbH, Berliner Straße 56, 77694 Kehl, Germany
4. Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz
1, 45470 Mülheim
a.d. Ruhr, Germany
5. European Synchrotron Radiation
Facility, Polygone Scientifique Louis Néel, 6 rue Jules Horowitz, 38000 Grenoble, France