PROBST, T.; MÜHLBERGER, A.; KÜHNER, J.; EIFERT, G. H.; PIEH, C.; HACKBARTH, T.; MANDER, J. Development and Initial Validation of a Brief Questionnaire on the Patients’ View of the In-Session Realization of the Six Core Components of Acceptance and Commitment Therapy. Clinical Psychology in Europe, v. 2, n. 3, p. 1-23, 30 Sep. 2020.