Portici Italian National Agency for New Technologies;
Energy;
and Sustainable Economic Development (ENEA) ResearchCenter;
Piazzale E. Fermi 1;
80055 Portici (Naples);
Italy;
Frascati Italian National Agency for New Technologies;
Energy;
and Sustainable Economic Development (ENEA) Re-search Center;
via E. Fermi 45;
00044 Frascati (Roma);
Italy;
Department of Physics;
University of Naples "Federico II;
" via Cintia 1;
80126 Naples;
Italy;
不详;