1. Institute
of Physics, Faculty
of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland
2. Institute
of Physics, Kazimierz Wielki University, Plac Weyssenhoffa 11, PL-85072 Bydgoszcz, Poland
3. Department of Applied Mathematics
and Computer Science, Technical University of Denmark, 2800 Kgs. Lynbgy, Denmark
4. Center for Research in Biological
Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain