1. Babes-Bolyai University
2. Faculty of Physics & Institute of Interdisciplinary Research in Bio-Nano-Sciences
3. 400084 Cluj-Napoca, Romania
4. Department of Physics
5. University of Osnabrück
6. Institute of Biophysics
7. Biological Research Centre of the Hungarian
8. Academy of Sciences
9. 6726 Szeged, Hungary
10. 49069 Osnabrück, Germany