?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Van+Duong%2C+Nguyen&rft.aulast=Van+Duong&rft.aufirst=Nguyen&rft.date=27+June+2018&rft.title=Elevator+Motion+States+Recognition+Using+Barometer+Support+Indoor+Positioning+System&rft.genre=proceeding