Krause, M., de la Parra, G., Arístegui, R., Dagnino, P., Tomicic, A., Valdés, N., Echávarri, O., Strasser, K., Reyes, L., Altimir, C., Ramírez, I., Vilches, O., & Ben-Dov, P. (2007). The evolution of therapeutic change studied through generic change indicators. Psychotherapy Research, 17(6), 673-689. Doi:10.1080/10503300601158814