Journal article (2003) - A Cornia (author), AC Fabretti (author), L Gourevitch (author), H.S.J. van der Zant (author), M Pacchioni (author), L Zobbi (author), D Bonacchi (author), A Caneschi (author), D Gatteschi (author), R Biagi (author), U Del Pennino (author), V De Renzi (author)