8Vural C, Yildiz M. Determination of sleep stage separa- tion ability of features extracted from EEG signals u- sing principle component analysis[J]. Journal of medi- cal systems,2010,34(1) :83-89.
9Vural C, Yildiz M. Determination of sleep stage separa- tion ability of features extracted from EEG signals u- sing principle component analysis[J]. Journal of Medi- cal Systems, 2010,34 (1) : 83-89. .
10Robinson M E,Sadler I J,O'Connor P D,et al. Detec- tion of submaximal effort and assessment of stability of the coefficient of variation[J] Journal of Occupational Rehabilitation, 1997,7 (4) : 207-215.
