?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=De+Montis&rft.aufirst=Andrea&rft.au=De+Montis%2C+Andrea&rft.date=2007&rft.title=Grouping+complex+systems%3A+a+weighted+network+comparative+analysis&rft.genre=proceeding