Blanco, C. F., and A. F. Ruiz Olaya. “A Novel Method Based on Regularized Logistic Regression and CCA for P300 Detection Using a Reduced Number of EEG Trials”. IEEE Latin America Transactions, vol. 18, no. 12, Feb. 2021, pp. 2147-54, https://latamt.ieeer9.org/index.php/transactions/article/view/4607.