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Zhang, M., Wang, Z. & Hu, H. A new SSVEP-based BCI utilizing frequency and space to encode visual targets. Sci. China Inf. Sci. 63, 189301 (2020). https://doi.org/10.1007/s11432-019-2652-6
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DOI: https://doi.org/10.1007/s11432-019-2652-6