Peter Sommerfeld, 1958, Prof. Dr. rer. soc., studied sociology, educational sciences and psychology in Tubingen (Germany) and Grenoble (France). He received a PhD in social educational science and taught at the Universities of Fribourg, Bielefeld, Tubingen, the Free University of Berlin and the University of Krems (Austria). Since 1999 he has been Professor for Social Work at the University of Applied Sciences Solothurn Northwestern Switzerland, senior researcher and project manager in the research and development department. His main research focuses are: professionalisation of social work, e...