@article{weko_8530_1, author = "Yamakoshi,Takehiro and Rolfe,Peter and Yamakoshi,Yasuhiro and Hirose,Hajime", title = "A novel physicological index for Driver's Activation State derived from simulated monotonous driving studies", journal = "Tranportation Research, Part C: Emerging Technologies", year = "2009", volume = "17C", number = "1", pages = "69--80", month = "feb" }