Jung, Sang-Joong; Shin, Heung-Sub; Chung, Wan-Young: 'Driver fatigue and drowsiness monitoring system with embedded electrocardiogram sensor on steering wheel', IET Intelligent Transport Systems, 2014, 8, (1), p. 43-50, DOI: 10.1049/iet-its.2012.0032
IET Digital Library, https://digital-library.theiet.org/;jsessionid=3s2vpr3xf53dv.x-iet-live-01content/journals/10.1049/iet-its.2012.0032