?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Vu%2C+Xuan+Son&rft.aulast=Vu&rft.aufirst=Xuan+Son&rft.date=9+October+2014&rft.title=Improving+Text-Based+Image+Search+with+Textual+and+Visual+Features+Combination&rft.genre=proceeding