?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=Alberto&rft.aulast=Pettorossi&rft.au=Pettorossi%2C+Alberto&rft.title=Transformational+Verification+of+Linear+Temporal+Logic&rft.date=2009&rft.genre=proceeding