?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Vu%2C+Thi+Hong+Nhan&rft.aulast=Vu&rft.aufirst=Thi+Hong+Nhan&rft.date=2008&rft.issn=1225-6463&rft.atitle=Spatiotemporal+Pattern+Mining+Technique+for+Location-based+Service+System&rft.title=ETRI+Journal&rft.genre=article