?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Snook%2C+Colin&rft.aulast=Snook&rft.aufirst=Colin&rft.issue=1-2&rft.volume=50&rft.date=January+2008&rft.atitle=Rigorous+engineering+of+product-line+requirements%3A+a+case+study+in+failure+management&rft.title=Information+and+Software+Technology&rft.pages=112-129&rft.genre=article