?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=Stefano&rft.aulast=Gattei&rft.au=Gattei%2C+Stefano&rft.date=2008&rft.btitle=Introduzione+a+Popper&rft.tpages=208&rft.isbn=9788842083894&rft.genre=book