By Hafkenscheid Anton   in European Journal of Psychotherapy, Counselling & Health

ISSN:1469-5901|7|3|159-168

Routledge Ltd‎(2005)‎

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By Hafkenscheid Anton   Kiesler Donald   in Psychotherapy Research

ISSN:1050-3307|17|4|393-403

Routledge Ltd‎(2007)‎

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