[["Drago","Alessandro","","Univ. Ferrara and INFN sez. Ferrara, Italy"],["Pagliara","Giuseppe","","Inst. Theoretische Physik, Goethe Universitaet, Frankfurt am Main,\n  Germany and INFN Italy"],["Parenti","Irene","","Univ. Ferrara and INFN sez.\n  Ferrara, Italy"]]