Ortiz, T., J. M. Pérez-Serrano, C. Zaglul, R. Coullaut, J. Coullaut Jr., J. Criado, and A. Fernández. 2003. “Deficit of Cognitive Event-Related Potentials During a Working Task in Patients With Major Depression”. Actas Españolas De Psiquiatría 31 (4):177-81. https://actaspsiquiatria.es/index.php/actas/article/view/1138.