?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Stein%2C+Sebastian&rft.aulast=Stein&rft.aufirst=Sebastian&rft.issue=2&rft.volume=4&rft.date=2011&rft.atitle=Robust+Execution+of+Service+Workflows+using+Redundancy+and+Advance+Reservations+&rft.title=IEEE+Transactions+on+Services+Computing%2C&rft.pages=125-139&rft.genre=article