?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Nguyen%2C+Ha+Thanh&rft.aulast=Nguyen&rft.aufirst=Ha+Thanh&rft.date=19+October+2017&rft.title=A+Knowledge+Representation+for+Vietnamese+Legal+Document+System&rft.genre=proceeding