Group Dynamics : Theory, Research, and Practice : the Official Journal of Division 49, Group Psychology and Group Psychotherapy of the American Psychological Association|June 1, 1997
Group Dynamics : Theory, Research, and Practice : the Official Journal of Division 49, Group Psychology and Group Psychotherapy of the American Psychological Association|September 7, 2001
Group Dynamics : Theory, Research, and Practice : the Official Journal of Division 49, Group Psychology and Group Psychotherapy of the American Psychological Association|June 1, 1997
Group Dynamics : Theory, Research, and Practice : the Official Journal of Division 49, Group Psychology and Group Psychotherapy of the American Psychological Association|September 7, 2001