?url_ver=Z39.88-2004&rft_id=10.1145%2F3185089.3185093&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=Tachmammedov&rft.au=Tachmammedov%2C+S.&rft.aufirst=S.&rft.isbn=9781450354141&rft.title=Automated+multi-factor+analytics+for+cheat-proofing+attendance-taking&rft.date=2018&rft.genre=proceeding