1. Ugon , "Evaluating optisas , a visual method to analyse sleep apnea syndromes," 2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society , 2009 , pp. 4747 - 4750 , doi: 10.1109/IEMBS.2009.5334187. 10.1109/IEMBS.2009.5334187 Ugon , "Evaluating optisas, a visual method to analyse sleep apnea syndromes," 2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2009, pp. 4747-4750, doi: 10.1109/IEMBS.2009.5334187.
2. T. Penzel , C. -. Lo , P. C. Ivanov , K. Kesper , H. F. Becker and C. Vogelmeier , " Analysis of Sleep Fragmentation and Sleep Structure in Patients With Sleep Apnea and Normal Volunteers," 2005 IEEE Engineering in Medicine and Biology 27th Annual Conference , 2005 , pp. 2591 - 2594 , doi: 10.1109/IEMBS.2005.1616999. 10.1109/IEMBS.2005.1616999 T. Penzel, C. -. Lo, P. C. Ivanov, K. Kesper, H. F. Becker and C. Vogelmeier, "Analysis of Sleep Fragmentation and Sleep Structure in Patients With Sleep Apnea and Normal Volunteers," 2005 IEEE Engineering in Medicine and Biology 27th Annual Conference, 2005, pp. 2591-2594, doi: 10.1109/IEMBS.2005.1616999.
3. E. C. Beppler J. Dieffenderfer T. Songkakul A. Krystal and A. Bozkurt "An Ultra-miniaturized Near Infrared Spectroscopy System to Assess Sleep Apnea in Children with Down Syndrome " 2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) 2018 pp. 2877-2880 doi: 10.1109/EMBC.2018.8513038. 10.1109/EMBC.2018.8513038
4. E. C. Beppler J. Dieffenderfer T. Songkakul A. Krystal and A. Bozkurt "An Ultra-miniaturized Near Infrared Spectroscopy System to Assess Sleep Apnea in Children with Down Syndrome " 2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) 2018 pp. 2877-2880 doi: 10.1109/EMBC.2018.8513038.
5. K. Intusorn , K. Watsutanon and P. Soontornpipit , " Smart Phone Application for Tracking Sleep Quality and Peripheral Arterial Tonometry to Detect Sleep Apnea," 2019 7th International Electrical Engineering Congress (iEECON) , 2019 , pp. 1 - 4 , doi: 10.1109/iEECON45304.2019.8938977. 10.1109/iEECON45304.2019.8938977 K. Intusorn, K. Watsutanon and P. Soontornpipit, "Smart Phone Application for Tracking Sleep Quality and Peripheral Arterial Tonometry to Detect Sleep Apnea," 2019 7th International Electrical Engineering Congress (iEECON), 2019, pp. 1-4, doi: 10.1109/iEECON45304.2019.8938977.