WASET
    Sun H. Hwang and  Young E. Lee and  Yunhan Ga and  Gilwon Yoon,  EEG Signal Processing Methods to Differentiate Mental States.   journal   = {International Journal of Biomedical and Biological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2016, vol. 120(12). 589 - 592
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10006214.