?url_ver=Z39.88-2004&rft_id=10.1109%2FITSIM.2010.5561366&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=C.-Y.&rft.aulast=Lai&rft.au=Lai%2C+C.-Y.&rft.isbn=9781424467181&rft.title=As+sketchy+as+possible%3A+Application+Programming+Interface+(API)+for+sketch-based+user+interface&rft.date=2010&rft.genre=proceeding