Sommerfeld, Peter2016-07-112016-07-112014-06-121552-75811049-731510.1177/1049731514538523http://hdl.handle.net/11654/23077https://doi.org/10.26041/fhnw-3796en-UKPracticeResearchSocial Work360 - Soziale Probleme, Sozialdienste, VersicherungenSocial Work as an Action Science: A Perspective From Europe01A - Beitrag in wissenschaftlicher Zeitschrift586-600