?url_ver=Z39.88-2004&rft_id=10.1007%2F978-3-540-44943-0_9&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=Caldarelli&rft.aufirst=Guido&rft.au=Caldarelli%2C+Guido&rft.isbn=978-3-540-40372-2&rft.date=2003&rft.btitle=Statistical+Mechanics+of+Complex+Networks&rft.title=Food+web+structure+and+the+evolution+of+complex+networks&rft.issn=0075-8450&rft.genre=bookitem