1. Institute of Biosciences
2. Letters and Exact Sciences
3. Sao Paulo State University
4. 15054-000 Sao Jose do Rio Preto, Brazil
5. Department of Physics
6. Tampere University of Technology
7. 33101 Tampere, Finland
8. Institute for Physics & Astronomy
9. University of Potsdam
10. 14476 Potsdam-Golm, Germany