?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=Cristina&rft.aulast=Tealdi&rft.au=Tealdi%2C+Cristina&rft.title=How+much+flexibility+do+we+really+need%3F&rft.date=April+2012&rft.genre=proceeding