M. Koemeda-Lutz, A. Crameri, P. Schulthess, A. von Wyl, y V. Tschuschke, «Searching for Active Factors in Diverse Approaches to Psychotherapy – Types of Intervention and Temporal Aspects: Brief Research Report», CJIIBA, vol. 26, n.º 1, pp. 119–136, mar. 2016.