Zapata Ferrer, Ángel. P., C. Moncada Jiménez, A. Gaona González, and M. Ángel Aguillón Pantaleón. “Systems for the Detection and Processing of Wave-Spike Type EEG Signals”. Revista Mexicana De Ingenieria Biomedica, vol. 12, no. 1, June 1991, p. 11, http://rmib.com.mx/index.php/rmib/article/view/809.