Taiyo Matsumura and  Kota Funabashi and  Nobumichi Sakai and  Takashi Ono,  Emergency Condition Discrimination for Single People Using a CO2 Sensor and Body Detectors.   journal   = {International Journal of Health and Medical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2018, vol. 141(9). 415 - 419
    [viewed 26 January 2022]. Available from: https://publications.waset.org/pdf/10009567.