?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Nguyen%2C+Hong+Quan&rft.aulast=Nguyen&rft.aufirst=Hong+Quan&rft.date=January+2015&rft.title=Automatic+detection+of+problematic+rules+in+Vietnamese+Treebank&rft.genre=proceeding