@book{ Solr-090050185, title = {Gestalt-Therapie in Aktion}, series = {Konzepte der Humanwissenschaften}, author = {Perls, Frederick S.}, address = {Stuttgart}, publisher = {Klett-Cotta}, year = {1996}, edition = {8. Aufl.}, url = {http://d-nb.info/921562535/04} }