1. Regional Centre of Advanced Technologies and Materials
2. Faculty of Science
3. Palacky University
4. 771 46 Olomouc
5. Czech Republic
6. Department of Inorganic Technology
7. University of Chemistry and Technology Prague
8. 166 28 Prague 6
9. Department of Materials Science and Engineering
10. University of Erlangen-Nuremberg
11. D-91058 Erlangen
12. Germany