?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Nguyen%2C+Ngoc+Vu&rft.aulast=Nguyen&rft.aufirst=Ngoc+Vu&rft.date=8+April+2019&rft.title=A+Character-Level+Deep+Lifelong+Learning+Model+for+Named+Entity+Recognition+in+Vietnamese+Text&rft.genre=proceeding