1. Institute of Physics
2. Chair of Solid State and Materials Chemistry
3. Augsburg University
4. D-86159 Augsburg, Germany
5. Department of Chemistry
6. Organic and Bioorganic Chemistry
7. Bielefeld University
8. D-33501 Bielefeld, Germany
9. Institute of Experimental Physics
10. Ulm University
11. D-89081 Ulm, Germany
12. Institute of Chemistry
13. Eötvös Loránd University
14. H-1518 Budapest 112, Hungary