1. Institute of Technology, Faculty of Mathematics, Physics and Technical Science, Pedagogical University of Cracow, Podchorążych 2, PL-30084 Kraków, Poland
2. Faculty of Computer Science and Materials Science, University of Silesia, 75 Pułku Piechoty 1A, PL-41500 Chorzów, Poland
3. Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, PL-30239 Kraków, Poland
4. Institute of Physics, Pedagogical University, Podchorążych 2, PL-30084 Kraków, Poland