Barrada, Juan Ramón, Julio Olea, and Francisco José Abad. “Rotating item banks versus restriction of maximum exposure rates in computerized adaptive testing”. The Spanish Journal of Psychology, vol. 11, vol. 11, no. 2, 2008, pp. 618-25, https://revistas.ucm.es/index.php/SJOP/article/view/SJOP0808220618A.