Porozovs, Juris, Viktors Veliks, Aija Kļaviņa, and Gunita Praulīte. 2023. “EEG Spectral Feature Markers As an Indicator of Human Cognitive Process”. International Journal of Emerging Technologies in Learning (iJET) 18 (01):pp. 164-175. https://doi.org/10.3991/ijet.v18i01.31259.