Institution: | 1. Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland;2. Institute of Physics, University of Zielona Góra, Prof. Z. Szafrana 4a, 65-516 Zielona Góra, Poland;1. Gdansk University of Technology, Gdansk, Poland;2. Institute of Molecular Physics, Polish Academy of Sciences, Poznan, Poland;3. University of Athens, Athens,Greece |