Marcos, J. L. y Redondo, J. (2002) «Differential effects of expectancy and associative mechanisms on diminution of unconditioned response in electrodermal classical conditioning», Psicothema, 14(Número 2), pp. 375–381. Disponible en: http://156.35.33.188/index.php/PST/article/view/8030 (Accedido: 17 septiembre 2026).