Institution: | (1) W. Trzebiatowski-Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-950 Wroclaw, Poland (Fax: +48-71/441-029, E-mail: suszyn@int.pan.wroc.pl), PL;(2) INFM and Physics Department, M. Melloni-University, 43-100 Parma, Italy (E-mail: capelletti@pr.infn.it), IT |