?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Jones%2C+Cliff+B&rft.aulast=Jones&rft.aufirst=Cliff+B&rft.date=2009&rft.title=Abstraction+is+all+we've+got%3A+auxiliary+variables+considered+harmful.&rft.genre=proceeding