?url_ver=Z39.88-2004&rft_id=10.1109%2FICIAS.2012.6306089&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=S.Q.&rft.au=Ali%2C+S.Q.&rft.aulast=Ali&rft.title=Sleep+apnea+detection+from+heart+rate+variability+data+using+a+DWPT+based+technique&rft.isbn=9781457719677&rft.date=2012&rft.genre=proceeding