?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Pham+Nghia%2C+Luan&rft.aulast=Pham+Nghia&rft.aufirst=Luan&rft.date=2019&rft.title=Grammatical+error+correction+for+Vietnamese+using+Machine+Translation&rft.genre=proceeding