| Marek GODLEWSKI, Institute of Physics, Polish Academy of Sciences, Warsaw, Poland |
| Waldemar GORZKOWSKI, Institute of Physics, Polish Academy of Sciences, Warsaw, Poland |
| Marek GUTOWSKI, Institute of Physics, Polish Academy of Sciences, Warsaw, Poland |
| Piotr KOSSACKI, Institute for Theoretical Physics, Warsaw University, Warsaw, Poland |
| Jacek KOSSUT, Institute of Physics, Polish Academy of Sciences, Warsaw, Poland |
| Marek KU¦, Center for Theoretical Physics, Polish Academy of Sciences, Warsaw, Poland |
| Andrzej ŁUSAKOWSKI, Institute of Physics, Polish Academy of Sciences, Warsaw, Poland |
| Andrzej NADOLNY, Institute of Physics, Polish Academy of Sciences, Warsaw, Poland |
| Stefan NADOLSKI, Institute of Physics, Polish Academy of Sciences, Warsaw, Poland |
| Jan MOSTOWSKI, Institute of Physics, Polish Academy of Sciences, Warsaw, Poland |
| Jakub ROGUSKI, Institute of Physics, Polish Academy of Sciences, Warsaw, Poland |
| Kazimierz RZˇŻEWSKI, Center for Theoretical Physics, Polish Academy of Sciences, Warsaw, Poland |
| Henryk SZYMCZAK, Institute of Physics, Polish Academy of Sciences, Warsaw, Poland |
| Władysław ŻAKOWICZ, Institute of Physics, Polish Academy of Sciences, Warsaw, Poland |