Ken, Tan Lit, Tahir Bin Ahmad, Lee Kee Quen, Gan Yee Siang, Tey Wah Yen, and Wong Wai Kit. “Topological Basis of Flat Electroencephalography’s State Space”. Asian Journal of Engineering and Technology 5, no. 2 (April 22, 2017). Accessed May 22, 2022. https://ajouronline.com/index.php/AJET/article/view/4756.