?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Silva%2C+Josep&rft.aulast=Silva&rft.aufirst=Josep&rft.btitle=Proceedings+of+8th+International+Workshop+on+Automated+Specification+and+Verification+of+Web+Systems+(WWV+2012)&rft.date=2012&rft.genre=book