?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Hoang%2C+Xuan+Tung&rft.aulast=Hoang&rft.aufirst=Xuan+Tung&rft.date=20+March+2019&rft.title=An+Enhanced+Semantic-based+Cache+Replacement+Algorithm+for+Web+Systems&rft.genre=proceeding