Laredo A., Claustre Jané M. ., Mitjavila M. ., Pla E., Pi M., Ruiz G., Domènech E. y Viñas F. (2007). Temperamental Dimension and Anxiety Problems in a Clinical Sample of Three- to Six-year old Children: A Study of Variables. The Spanish Journal of Psychology, 10(2), 399-407. https://revistas.ucm.es/index.php/SJOP/article/view/SJOP0707220399A