Moessner, M; Gallas, C; Haug, Severin; Kordy, H (2011). The clinical psychological diagnostic system (KPD-38): sensitivity to change and validity of a self-report instrument for outcome monitoring and quality assurance. Clinical Psychology & Psychotherapy, 18(4):331-338.
Bauer, S; Wolf, M; Haug, Severin; Kordy, H (2011). The effectiveness of internet chat groups in relapse prevention after inpatient psychotherapy. Psychotherapy Research, 21(2):219-226.