Lindig - León, C., and O. Yáñez - Suárez. “Optimized Detection of the Infrequent Response in P300-Based Brain-Computer Interfaces”. Revista Mexicana De Ingenieria Biomedica, vol. 34, no. 1, Jan. 2013, pp. 53-69, https://rmib.mx/index.php/rmib/article/view/203.